Al-Fudayl b. 'Iyaad (d. 187H) rahimahullaah said:

“Beware of sitting with one who will corrupt your heart and do not sit with a person of desires for indeed I fear for you the wrath of Allaah.”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Al-Ibaanah (no.451), al-Laalikaa’ee (no.262)

Al-Fudayl b. 'Iyaad (d. 187H) rahimahullaah said:

“Beware of sitting with one who will corrupt your heart and do not sit with a person of desires for indeed I fear for you the wrath of Allaah.”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Al-Ibaanah (no.451), al-Laalikaa’ee (no.262)

Sallaam b. Abee Mutee' (d. 173H) rahimahullaah said:

“A man from the people of desires said to Ayyoob as-Sakhtiyaanee (d. 131H): 'O Aboo Bakr, can I ask you regarding a Kalimah (word)?' So Ayyoob turned away from him whilst indicating with his finger (his little finger from his right-hand) and saying: 'No, not even half a word. No, not even half a word.'”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Al-Qadar (no.374), as-Sunnah of Abdullaah (no.101), ash-Sharee’ah (no.62), Siyar A'laam an-Nubalaa (6/21, 11/285), and it has preceded under no.373 [of this book] with more references.

Sallaam b. Abee Mutee' (d. 173H) rahimahullaah said:

“A man from the people of desires said to Ayyoob as-Sakhtiyaanee (d. 131H): 'O Aboo Bakr, can I ask you regarding a Kalimah (word)?' So Ayyoob turned away from him whilst indicating with his finger (his little finger from his right-hand) and saying: 'No, not even half a word. No, not even half a word.'”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Al-Qadar (no.374), as-Sunnah of Abdullaah (no.101), ash-Sharee’ah (no.62), Siyar A'laam an-Nubalaa (6/21, 11/285), and it has preceded under no.373 [of this book] with more references.

Ismaa'eel at-Toosee rahimahullaah said:

Ibn al-Mubaarak said to me: “Your sitting should be with the Masaakeen (the poor) and beware of sitting with a person of innovation.”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Al-Ibaanah (no.452), al-Laalikaa'ee (no.260), Hilyatul-Awliyaa (8/168), Shu'ab al-Imaan (7/64)

Ismaa'eel at-Toosee rahimahullaah said:

Ibn al-Mubaarak said to me: “Your sitting should be with the Masaakeen (the poor) and beware of sitting with a person of innovation.”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Al-Ibaanah (no.452), al-Laalikaa'ee (no.260), Hilyatul-Awliyaa (8/168), Shu'ab al-Imaan (7/64)

Yahya b. Abee Katheer (d. 129H) rahimahullaah said:

“If you come across a person of Innovation on the road then take another (different) road.”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Ibn Waddaah (p.55), ash-Sharee'ah (no.67), al-Ibaanah (no.490, no.493), Sharh Usool I'tiqaad Ahlus-Sunnah al-Laalikaa'ee (no.259), al-Hilyah (3/69), Shu'ab al-Imaan (no.9463, 9466), al-I'tisaam 1/172)

Yahya b. Abee Katheer (d. 129H) rahimahullaah said:

“If you come across a person of Innovation on the road then take another (different) road.”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Ibn Waddaah (p.55), ash-Sharee'ah (no.67), al-Ibaanah (no.490, no.493), Sharh Usool I'tiqaad Ahlus-Sunnah al-Laalikaa'ee (no.259), al-Hilyah (3/69), Shu'ab al-Imaan (no.9463, 9466), al-I'tisaam 1/172)

Ibraheem an-Nakhaa'ee (d. 96H) rahimahullaah said to Muhammad b. As-Saaib:

“Do not come near us as long as you are upon this opinion of yours.”
He was a Murjee*.

* Translator’s Note: A Murjee is a person of deviation who believes in the deviated belief of al-Irjaa. Al-Irjaa is an innovated belief that actions are not part of Imaan. So according to this deviant belief Imaan does not increase or decrease; therefore with them a good deed does not increase Imaan and a bad deed does not decrease Imaan. Whereas the belief of Ahlus-Sunnah is that Imaan is belief and action. It increases with acts of obedience to Allaah and decreases with acts of disobedience to Allaah.

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Ibn Waddaah (no.58)

Ibraheem an-Nakhaa'ee (d. 96H) rahimahullaah said to Muhammad b. As-Saaib:

“Do not come near us as long as you are upon this opinion of yours.”
He was a Murjee*.

* Translator’s Note: A Murjee is a person of deviation who believes in the deviated belief of al-Irjaa. Al-Irjaa is an innovated belief that actions are not part of Imaan. So according to this deviant belief Imaan does not increase or decrease; therefore with them a good deed does not increase Imaan and a bad deed does not decrease Imaan. Whereas the belief of Ahlus-Sunnah is that Imaan is belief and action. It increases with acts of obedience to Allaah and decreases with acts of disobedience to Allaah.

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Ibn Waddaah (no.58)

Abul-Qaasim an-Nasr Abaadhee (d. 367H) rahimahullaah said:

“It reached me that al-Haarith al-Muhaasibee had spoken about something from theological rhetoric (al-Kalaam), so Ahmad b. Hanbal boycotted him, therefore he went into hiding. And when he died no one prayed over him except for four people.”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Taareekh Baghdad (8/215, 216), al-Ansaab [of as-Sam'aanee] (5/208), Meezanul-I'tidaal (2/165), at-Tahdheeb (2/117)

Abul-Qaasim an-Nasr Abaadhee (d. 367H) rahimahullaah said:

“It reached me that al-Haarith al-Muhaasibee had spoken about something from theological rhetoric (al-Kalaam), so Ahmad b. Hanbal boycotted him, therefore he went into hiding. And when he died no one prayed over him except for four people.”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Taareekh Baghdad (8/215, 216), al-Ansaab [of as-Sam'aanee] (5/208), Meezanul-I'tidaal (2/165), at-Tahdheeb (2/117)

The Worshippers Of Ar-Rahmaan & The Worshippers Of The Shaytaan... By Shaykhul-Islaam Ibn Taymiyyah (d. 728H)
rahimahullaah

Mufaddal b. Muhalhal as-Sa'dee (d. 167H) rahimahullaah said:

“If a person of Innovation were to sit with you and speak to you about his innovation (from the onset); then you would have warned against him and fled from him. But he speaks to you with the Sunnah at the start of his sitting (with you); and then he introduces to you his innovation. Perhaps it will persist in your heart, so then when will it leave your heart .”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Al-Ibaanah (no.394)

Mufaddal b. Muhalhal as-Sa'dee (d. 167H) rahimahullaah said:

“If a person of Innovation were to sit with you and speak to you about his innovation (from the onset); then you would have warned against him and fled from him. But he speaks to you with the Sunnah at the start of his sitting (with you); and then he introduces to you his innovation. Perhaps it will persist in your heart, so then when will it leave your heart .”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Al-Ibaanah (no.394)

Al-Qaadee Abul-Hussain (d. 526H) rahimahullaah said in 'at-Tamaam':

“The narrations do not differ concerning boycotting the people of innovation and the Fussaaq (open sinners) from the Muslim community. Furthermore, there is no difference in that regard between the next of kin or a stranger if the right belongs to Allaah the Most High. However, when the right belongs to a human being, such as al-Qadhf (accusation of fornication and adultery), revilement, backbiting, usurping property by force and the likes of that then you have to examine and consider. So if the person being boycotted or the doer of that (evil deed) is from his close relatives and next of kin then it is not permissible to boycott him.”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Al-Aadab as-Shar'iyyah (1/238)

Al-Qaadee Abul-Hussain (d. 526H) rahimahullaah said in 'at-Tamaam':

“The narrations do not differ concerning boycotting the people of innovation and the Fussaaq (open sinners) from the Muslim community. Furthermore, there is no difference in that regard between the next of kin or a stranger if the right belongs to Allaah the Most High. However, when the right belongs to a human being, such as al-Qadhf (accusation of fornication and adultery), revilement, backbiting, usurping property by force and the likes of that then you have to examine and consider. So if the person being boycotted or the doer of that (evil deed) is from his close relatives and next of kin then it is not permissible to boycott him.”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: Al-Aadab as-Shar'iyyah (1/238)

[Aboo 'Urwah] Ma'mar [b. Raashid] (d. 153H) rahimahullaah said:

“Whilst I was (sitting) with ['Abdullaah] Ibn Taawoos who had his son sitting with him; a man called Saalih came to him who used to speak about al-Qadar (i.e. he was Qadaree). And when he started to speak about something, Ibn Taawoos put his fingers in his ears and said to his son: ‘Put your fingers in your ears and press them firmly so you do not hear anything from his speech whatsoever, for indeed the heart is weak.’”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: 'Abdur-Razzaaq (no.20099), al-Ibaanah (no.400), al-Laalikaa'ee (no.248)

[Aboo 'Urwah] Ma'mar [b. Raashid] (d. 153H) rahimahullaah said:

“Whilst I was (sitting) with ['Abdullaah] Ibn Taawoos who had his son sitting with him; a man called Saalih came to him who used to speak about al-Qadar (i.e. he was Qadaree). And when he started to speak about something, Ibn Taawoos put his fingers in his ears and said to his son: ‘Put your fingers in your ears and press them firmly so you do not hear anything from his speech whatsoever, for indeed the heart is weak.’”

Translated by Aboo 'Abdillaah Bilal Hussain al-Kashmiree
Reference: 'Abdur-Razzaaq (no.20099), al-Ibaanah (no.400), al-Laalikaa'ee (no.248)