كتاب الجامع
16  
The Comprehensive Book
Bulugh al-Maram 1535
Abu Hurairah (RAA) narrated that the Messenger of Allah (ﷺ) said:
“Every believer is the mirror of his brother.” Related by Abu Dawud with a good chain of narrators.
وَعَنْهُ قَالَ: قَالَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-{ اَلْمُؤْمِنُ مِرْآةُ اَلْمُؤْمِنِ } أَخْرَجَهُ أَبُو دَاوُدَ بِإِسْنَادٍ حَسَنٍ .‏ 1‏ .‏
Reference : Bulugh al-Maram 1535
In-book reference : Book 16, Hadith 1535
English translation : Book 16, Hadith 1578
Hadith Text
Reference