Sayyiduna Bilal (may Allah be pleased with him) said: I came to the Messenger of Allah (peace and blessings be upon him) to inform him of the prayer, and he wanted to fast. He (peace and blessings be upon him) drank water, then passed it to me and I drank too. Then he (peace and blessings be upon him) went out for the prayer and led us in prayer.
Hadith Referenceالمعجم الكبير للطبراني / باب الباء / 1078
Sayyiduna Bilal (may Allah be pleased with him) said: I came to the Messenger of Allah (peace and blessings be upon him) to inform him of the prayer, and he wanted to fast. He (peace and blessings be upon him) called for a vessel and drank water, then passed it to me and I drank too. Then he (peace and blessings be upon him) went out for the prayer.
Hadith Referenceالمعجم الكبير للطبراني / باب الباء / 1079