Ibnul-Qayyim رحمه الله said:

“Know, that if the goodness
of tawhid and the vilification of shirk is not known by the ‘aql (intellect) and ingrained innately, then there is no assurance of anything to be included within the matters known by the ‘aql.

Indeed, this is from the most apparent of matters and the clearest of what Allāh has built within the intellects and innate natures.

▪︎Madarij as-Salikin, v. 3, p. 455

@watasimuholdfast90

Ibn Mas'ud RA said,

"Do not learn knowledge for three reasons: to argue with foolish people, or to dispute with fugaha, or to turn people's faces towards you. Seek from your words and your actions that which is with Allah because it endures and what is other than it will go away."

[The Compendium of Knowledge and
Wisdom by In Rajab Al-Hanbali رحمه الله pg. 15]

@FadingShadow

Ibn al-Jawzī رحمه الله:

“Liberate your tongue to indulge in the remembrance of Allāh, but if you are unable to do so, then at the very least, restrain it from backbiting.”

[Kitāb al-Laṭā’if fil-Wā‘iẓ | P. 173]

Az-Zalzalah 99:8
وَمَن يَعۡمَلۡ مِثۡقَالَ ذَرَّةٍ شَرًّا يَرَهُۥ


And whosoever does evil equal to the weight of an atom (or a small ant), shall see it.

Divehi - Abu Bakr Ibrahim Ali (Bakurube)
(8) އަދި ނުބައިކަމުގެ ތެރެއިން ޛައްރެއްގެ މިންވަރުގެ ކުޑަ ޢަމަލެއްކޮށްފަވާ މީހަކުވެސް އެކަން ދެކޭނެއެވެ. (އެއަށް އޭނާ މަސްއޫލު ވާންޖެހޭނެއެވެ.)