(29) باب مَتَى يَقُومُ النَّاسُ لِلصَّلاَةِ
Abu Salama reported on the authority of Abu Huraira that when Iqama was pronounced for the Messenger of Allah (ﷺ), the people occupied their places in the rows before the Messenger of Allah (way peace be upon him) stood up at his place.
Reference: Sahih Muslim 605 c
In-book reference: Book 5, Hadith 203
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1258