Sunan Ibn Majah 993
سنن ابن ماجه#993SahihIt was narrated that Anas bin Malik said:“The Messenger of Allah (ﷺ) said: ‘Make your rows straight, for straightening the rows is part of completing the prayer.’”
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih - Bukhari And Muslim
In-book reference: 5:191