سُنَنُ النَّسَائِيِّ
Sunan an-Nasa’i 1935
The Book of Funerals
The Prohibition Of Saying Anything But Good About The Deceased
أَخْبَرَنَا إِبْرَاهِيمُ بْنُ يَعْقُوبَ، قَالَ حَدَّثَنِي أَحْمَدُ بْنُ إِسْحَاقَ، قَالَ حَدَّثَنَا وُهَيْبٌ، قَالَ حَدَّثَنَا مَنْصُورُ بْنُ عَبْدِ الرَّحْمَنِ، عَنْ أُمِّهِ، عَنْ عَائِشَةَ، قَالَتْ ذُكِرَ عِنْدَ النَّبِيِّ صلى الله عليه وسلم هَالِكٌ بِسُوءٍ فَقَالَ لاَ تَذْكُرُوا هَلْكَاكُمْ إِلاَّ بِخَيْرٍ .
It was narrated that 'Aishah said: "Something bad was said in the presence of the Prophet (ﷺ) about a person who had died. He said: 'Do not say anything but good about your dead."'
Sunan an-Nasa'i, 1935Sahih (Darussalam)