Sunan Ibn Majah 312
سنن ابن ماجه#312SahihIt was narrated that Abu Hurairah said:"The Messenger of Allah said: 'When anyone of you cleans himself, he should not clean himself with his right hand. Let him clean himself with his left hand
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniHasan Sahih
Muhammad Fouad Abd al-BaqiHasan Sahih
Zubair Ali ZaiIsnaad Hasan
In-book reference: 1:46