It is narrated from Sayyida Umm Fadl (may Allah be pleased with her) that the companions became doubtful on the day of Arafah as to whether the Messenger of Allah (peace and blessings be upon him) was fasting or not. Sayyida Umm Fadl (may Allah be pleased with her) said: "I will find out for you." Then she sent a vessel of milk to the Prophet (peace and blessings be upon him). The Prophet (peace and blessings be upon him) drank it (and thus it became known that he was not fasting).