Setting
1- A man came while the Prophet (may Allah's peace and blessings be upon him) was giving the Friday sermon. So he said to him: O So and so, have you prayed? He said: No. The Prophet said: Then get up and pray two Rak‘ahs
2- ‘Umar ibn al-Khattāb (may Allah be pleased with him) recited Sūrat An-Nahl on the pulpit during the Friday sermon, and when he reached the verse of prostration, he got down and prostrated, and so did the people
