(1)
Hudhaifah (RAA) narrated that the Messenger of Allah (ﷺ) used to prohibit the announcement of anyone's death. Related by Ahmad and At-Tirmidhi, who rendered it Hasan. (ID)
Reference (ID): Bulugh al-Maram 556 (ID)
In-book reference (ID): Book 3, Hadith 24 (ID)
English translation (ID): Book 3, Hadith 580 (ID)