(52) باب النَّهْىِ عَنْ سَبِّ الأَمْوَاتِ،
It was narrated that 'Aishah said:
"The Messenger of Allah said: 'Do not verbally abuse the dead, for they have reached the consequences of what they did."' (ID)
Reference (ID): Sunan an-Nasa'i 1936 (ID)
In-book reference (ID): Book 21, Hadith 120 (ID)
English translation (ID): Vol. 3, Book 21, Hadith 1938 (ID)