Mukhtasar Bukhari

Narrated Ibn Abbas (may Allah be pleased with them) that the Prophet (peace and blessings of Allah be upon him) set out towards Hunain in the month of Ramadan. The people with him were not all in the same condition; some were fasting and some were not. When the Prophet (peace and blessings of Allah be upon him) mounted his ride, he asked for a vessel of water or milk, placed it on his palm or on the mount, and then drank it. Then he looked towards the people, and those who had not broken their fast, he said to the fasting ones: "You also break your fast (because the Prophet (peace and blessings of Allah be upon him) has broken his fast)."