كتاب الإيمان وشرائعه
Read the English translation first, with the original Arabic directly underneath.
It was narrated that Tariq bin Shihab said:
"Abu Sa'eed Al-Khudri said: 'I heard the Messenger of Allah [ﷺ] say: Whoever among you sees an evil and changes it with his hand, then he has done his duty. Whoever is unable to do that, but changes it with his tongue, then he has done his duty. Whoever is unable to do that, but changes it with his heart, then he has done his duty, and that is the weakest of Faith.'"
مَنْ رَأَى مُنْكَرًا فَغَيَّرَهُ بِيَدِهِ فَقَدْ بَرِئَ وَمَنْ لَمْ يَسْتَطِعْ أَنْ يُغَيِّرَهُ بِيَدِهِ فَغَيَّرَهُ بِلِسَانِهِ فَقَدْ بَرِئَ وَمَنْ لَمْ يَسْتَطِعْ أَنْ يُغَيِّرَهُ بِلِسَانِهِ فَغَيَّرَهُ بِقَلْبِهِ فَقَدْ بَرِئَ وَذَلِكَ أَضْعَفُ الإِيمَانِ