Al-Arba’īn an-Nawawīyah Ḥadīth [34]

عَنْ أَبِي سَعِيدٍ الْخُدْرِيّ رَضِيَ اللهُ عَنْهُ قَالَ: سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ: مَنْ رَأَى مِنْكُمْ مُنْكَرًا فَلْيُغَيِّرْهُ بِيَدِهِ؛ فَإِنْ لَمْ يَسْتَطِعْ فَبِلِسَانِهِ؛ فَإِنْ لَمْ يَسْتَطِعْ فَبِقَلْبِهِ، وَذَلِكَ أَضْعَفُ الْإِيمَانِ. رَوَاهُ مُسْلِمٌ

34 – It is reported on the authority of Abī Sa’īd al-Khudrī (may Allāh be pleased with him) who said: I heard the Messenger of Allāh (peace and blessings of Allāh be upon him) say:

“Whoever of you sees an evil, let him change it with his hand; and if he is not able to do so, then [let him change it] with his tongue; and if he is not able to do so, then with his heart and that is the weakest of faith.” [Reported by Muslim]