Sunan Abi Dawud 3999
سنن أبي داود#3999Da'ifNarrated AbuSa'id al-Khudri: The Messenger of Allah (ﷺ) mentioned the name of the one who will sound the trumpet (sahib as-sur) and said: On his right will be Jibra'il and on his left will be Mika'il
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniDaif
Muhammad Muhyi Al-Din Abdul HamidDaif
Zubair Ali ZaiDaif
In-book reference: 32:31