Benefit: The Imām Should Wait During the Rukūʿ for the People to Catch the Prayer
In the Name of Allāh, the Ever Merciful, the Bestower of Mercy
Answer: Yes, the prophet (ṣallá Allāhu ʿalayhi wa-sallam) would not lift his head up from rukūʿ until he heard the cessation of (people) walking, he would wait for those entering [to catch the prayer].
Shaykh Ṣāliḥ ibn Fawzān al-Fawzān
Source: إنتظار الإمام في الركوع
Translated by: Munīb al-Ṣumālī