Abdullah bin Wahb عبد الله بن وهب بن مسلم القرشي · The Book of the Fear Prayer

The Prophet (ﷺ) offered the fear prayer with those who were behind him, praying two rak'ahs (with them) and two rak'ahs with those who came after them, so the Prophet (ﷺ) prayed four rak'ahs and the others each prayed two rak'ahs.