It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: A man boarded a boat with wine for trade. There was also a monkey with him. The monkey grabbed his purse of money and climbed up a tree. The monkey started throwing one dinar into the sea and another into his master's boat, until he had divided them equally. (From here the famous saying originated: "The milk became milk and the water became water," meaning everything was separated and clarified.)