It is narrated from Hazrat Abdullah bin Abi Awfa (may Allah be pleased with him) that once we were on a journey and we could not find water. After a short while, we saw water at a place. People started bringing water to the service of the Holy Prophet (peace and blessings be upon him). Whenever someone brought water, the Holy Prophet (peace and blessings be upon him) would say: "The water-bearer of any people drinks last." This continued until all the people had drunk the water.