Abu Ishaq Shaybani narrates: I heard Sayyiduna Abdullah bin Abu Awfa (may Allah be pleased with him) saying: I was traveling with the Prophet Muhammad (peace and blessings be upon him). The Prophet (peace and blessings be upon him) said to a man: "Get down and mix sattu (barley flour) in water for us." He replied: "O Messenger of Allah! It is still sunny." The Prophet (peace and blessings be upon him) said: "Get down and mix sattu for us." Then the Prophet (peace and blessings be upon him) got down, and he mixed sattu in water for the Prophet (peace and blessings be upon him), so the Prophet (peace and blessings be upon him) drank it. Then the Prophet (peace and blessings be upon him) pointed with his blessed hand towards the east and said: "When you see the night coming from this direction, then the fasting person should break his fast."