وَعَنْ أَبِي أُمَامَةَ
أَنَّ رَجُلًا سَأَلَ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَا الْإِيمَانُ قَالَ: إِذَا سَرَّتْكَ حَسَنَتُكَ وَسَاءَتْكَ سَيِّئَتُكَ فَأَنْتَ مُؤْمِنٌ قَالَ: يَا رَسُولَ اللَّهِ فَمَا الْإِثْمُ قَالَ: إِذَا حَاكَ فِي نَفْسِكَ شَيْءٌ فَدَعْهُ»
A man asked God’s messenger what faith was, to which he replied, “When your good deed pleases you and your evil deed grieves you, you are a believer.” He then asked what sin was and received the reply, “When you have a besetting sin, give it up.”
Mishkat al-Masabih 42, Book 2, Faith, Hadith 41. 1 min read