Musannaf Ibn Abi Shayba 35:50

Ibn Fudayl narrated to us, from Abu Isma'il, from Abu Hazim, from Abu Hurayrah, who said: We camped with the Prophet, may Allah bless him and grant him peace, one night, and we did not wake up until the sun hurt us. The Prophet, may Allah bless him and grant him peace, said: "Let every man among you take the head of his mount, then move away from this place." Then he called for water and performed ablution, then prostrated two prostrations. Then the prayer was called, and he prayed. And he mentioned that Abu Hanifah said: It does not suffice him to pray if he wakes up at the rising of the sun or at its setting.