Sunan Abi Dawud 10
سنن أبي داود#10Da'ifNarrated Ma'qil ibn AbuMa'qil al-Asadi: The Messenger of Allah (ﷺ) has forbidden us to face the two qiblahs at the time of urination or excretion
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 HamidMunkar
Shuaib Al ArnautDaif
Zubair Ali ZaiDaif
In-book reference: 1:10