'Aishah (May Allah be pleased with her) said:
The Messenger of Allah (ﷺ) said, "Do not abuse the dead, because they have attained that which they had forwarded (i.e., their deeds, good or bad)."[Al-Bukhari]. (ES)
App reference (ES): Book 18, Hadith 54 (ES)
Arabic/English book reference (ES): Book 18, Hadith 1564 (ES)