“Do not feel safe from the punishment of Allah even about the best man in the whole community because Allah, the Sublime, says: "But none feels secure from the plan of Allah save the people (who are the) losers" (Quran, 7: 99). Again, do not lose hope even for the worst man of the community because Allah, the Sublime One, says: "Verily, none despair from Allah's mercy save the disbelieving people" (Quran, 12: 87).”

Peak of Eloquence / Nahjul-Balagha