Umm al-Mu’minin Aisha Siddiqa (may Allah be pleased with her) says: We used to soak nabidh (a drink) for the Messenger of Allah (peace and blessings be upon him) in a waterskin and tie a knot in it. There was a hole in it. In the morning we would soak it and at night he (peace be upon him) would drink it, and at night we would soak it and he (peace be upon him) would drink it in the morning.