Prohibition of Deriding one's Lineage

باب تحريم الطعن في الأنساب الثابتة في ظاهر الشرع

This brief chapter forbids attacking or mocking a person's family origins. To sneer at someone's lineage is to scorn something they did not choose and cannot change, and the hadith names it among the grave failings of the heart.

The single report places it alongside loud wailing over the dead, pairing two habits that vent grievance at the expense of dignity. The lesson is to leave people's ancestry alone and to meet loss with patience rather than display.

Hadith 1578

Abu Hurairah (May Allah be pleased with him) said:

وعن أبي هريرة رضي الله عنه قال‏:‏ قال رسول الله صلى الله عليه وسلم ‏:‏ ‏ "‏ اثنتان في الناس هما بهم كفر‏:‏ الطعن في النسب، والنياحة على الميت‏" ‏ ‏(‏‏(‏رواه مسلم‏)‏‏)‏‏.‏

The Messenger of Allah (ﷺ) said, "Two matters are signs of disbelief on the part of those who indulge in them: Defaming and speaking evil of a person's lineage, and wailing over the dead." [Muslim].

In plain words

Two habits are named here as marks of disbelief: insulting a person's family and ancestry, and loud wailing over the dead. Both are warned against in the strongest terms.

Reference : Riyad as-Salihin 1578 In-book reference : Book 17, Hadith 68