It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him), he says: We camped with the Messenger of Allah (peace and blessings be upon him) and could not wake up before the sun had risen. When we woke up, the Prophet (peace and blessings be upon him) said: Every man should take hold of the head of his mount (and move from here), for Satan has come to us at this place. So we did as he instructed. Then the Prophet (peace and blessings be upon him) asked for water and performed ablution, then offered the two Sunnah (units) before Fajr, then the prayer was established and the Prophet (peace and blessings be upon him) led us in the Fajr prayer.