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tirmidhi:1929Aḥmad b. Muḥammad > ʿAbdullāh b. al-Mubārak > Yaḥyá b. ʿUbaydullāh from his father > Abū Hurayrah

: "Indeed (each) one of you is the reflection of his brother. So if he sees something harmful in him, then let him remove it from him."  

الترمذي:١٩٢٩حَدَّثَنِي أَحْمَدُ بْنُ مُحَمَّدٍ أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ الْمُبَارَكِ أَخْبَرَنَا يَحْيَى بْنُ عُبَيْدِ اللَّهِ عَنْ أَبِيهِ عَنْ أَبِي هُرَيْرَةَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ إِنَّ أَحَدَكُمْ مِرْآةُ أَخِيهِ فَإِنْ رَأَى بِهِ أَذًى فَلْيُمِطْهُ عَنْهُ  

قَالَ أَبُو عِيسَى وَيَحْيَى بْنُ عُبَيْدِ اللَّهِ ضَعَّفَهُ شُعْبَةُ قَالَ وَفِي الْبَابِ عَنْ أَنَسٍ

See similar narrations below:

Collected by Suyūṭī