It is narrated from Sayyiduna Zaid bin Arqam (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) came out after sunrise and saw people praying, so he said: "The time for the prayer of the oft-returning (Salat al-Awwabeen) is when the feet of the young camels begin to burn (from the heat of the ground)."