Sunan Abi Dawud 910
سنن أبي داود#910Sahih‘A’ishah said:I asked the Messenger of Allah(ﷺ) about looking to the sides during prayer. He said: It is something which the devil snatches from a servant’s prayers
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiSahih Bukhari (751)
In-book reference: 2:521