Do not take a small sin lightly; instead, think about Who it is that you are disobeying: You are disobeying the Almighty Lord Who [sometimes] punishes people for small sins, and [sometimes] pardons people for great sins.

—Sufyān al-Thawrī [d. 161H/778CE]

(Read on pg 166, Salaahud-Deen ibn ‘Alee ibn ‘Abdul-Maujood, The Biography of Sufyaan Ath-Thauree. Darussalam Publishers. Riyadh:2005.)