Mukhmal bin Dimas says: I participated in a battle with Saeed bin Aas. He asked the people: Has any of you performed the prayer of fear (Salat al-Khawf) with the Messenger of Allah, peace and blessings be upon him? Sayyiduna Hudhayfah bin Yaman, may Allah be pleased with him, said: I have performed it. The Prophet, peace and blessings be upon him, led one group in one rak’ah while the other group stood facing the enemy. These people (after performing one rak’ah) went and stood in the place of their companions facing the enemy. The Messenger of Allah, peace and blessings be upon him, then led them in one rak’ah and then concluded the prayer with salam. Thus, the Messenger of Allah, peace and blessings be upon him, performed two rak’ahs and each group performed one each.