Sunan Abi Dawud 541
سنن أبي داود#541SahihAbu Hurairah reported:when the Iqamah was pronounced for prayer during the time of the Messenger of Allah (ﷺ), the people would take their seats before the prophet (ﷺ) came to his seat
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 (640) Sahih Muslim (605)
In-book reference: 2:151