(19) باب مِنْ فَضَائِلِ أُمِّ سُلَيْمٍ أُمِّ أَنَسِ بْنِ مَالِكٍ وَبِلاَلٍ رضى الله عنهما
Anas reported that Allah's Apostle (ﷺ) did not enter the house of any woman except that of his wives and that of Umm Sulaim. He used to visit her. It was said to him why it was so, whereupon he said:
I feel great compassion for her. Her brother was killed while he was with me.
Reference: Sahih Muslim 2455
In-book reference: Book 44, Hadith 149
USC-MSA web (English) reference(deprecated numbering scheme): Book 31, Hadith 6010