Prohibition of Disclosing the Physical defects of the Deceased

باب الكف عن ما يري من الميت من مكروه

This brief chapter guards the dignity of the dead. The one who washes a body sees it in its most vulnerable state, and Islam ties a great reward to guarding that privacy. The lesson reaches beyond the washing of bodies to a whole ethic of covering faults rather than exposing them.

Hadith 928

Abu Rafi` Aslam (May Allah be pleased with him), the freed slave of the Messenger of Allah (ﷺ) reported:

عن أبي رافع أسلم مولي رسول الله صلى الله عليه وسلم أن رسول الله صلى الله عليه وسلم قال‏:‏ ‏ "‏ من غسل ميتاً فكتم عليه ، غفر الله له أربعين مرة‏" ‏ ‏(‏‏(‏رواه الحاكم وقال صحيح علي شرط مسلم‏)‏‏)‏‏.‏

The Messenger of Allah (ﷺ) said, "He who washes a dead body and conceals what he notices of physical defects, he will be forgiven forty times.'' [Al-Hakim].

In plain words

Whoever washes a dead body and keeps private any flaws they notice on it is promised great forgiveness, a reward for guarding the dignity of the deceased.

Reference : Riyad as-Salihin 928 In-book reference : Book 6, Hadith 35