Kitāb al-Muʾmin
Hadith 177177 - وعن أبي عبد الله عليه السلام أنه قال: أبى الله أن يظن بالمؤمن إلا خيرا، وكسر عظم المؤمن ميتا ككسره حيا.
177. It has been reported that Abu 'Abd Allah (a.s) said: It is Allah's will that a believer should always be thought of well; and to humiliate a dead believer is like humiliating him whilst alive.