Sunan Abi Dawud 668

سنن أبي داود#668Sahih

Anas reported the Messenger of Allah (ﷺ) as saying :Straighten your rows for the straightening of the rows is part of perfecting 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 Muhyi Al-Din Abdul HamidSahih

Shuaib Al ArnautSahih

Zubair Ali ZaiSahih Bukhari (723) Sahih Muslim (433)

In-book reference: 2:278