Jami` at-Tirmidhi 2082

Abu Sa'eed said:"A man came to the Prophet (S.A.W) and said: 'My brother is suffering from loose bowels.' He said: 'Let him drink Honey.' So he drank it. Then he came and said: O Messenger of Allah (S.A.W)! He has drunk honey, but it has only made him more worse.' So the Messenger of Allah (S.A.W) said: ' Let him drink honey.'" He said: "So he drank it. Then he came and said: 'O Messenger of Allah (S.A.W)! I gave him some more to drink, but it has only made him more worse.'" He said: "The Messenger of Allah (S.A.W) said: 'Allah has told the truth,and your brother's stomach has lied. Give him honey to drink'. So he gave him some more honey to drink and he was cured