Musnad Ahmad 31:158

Yazid narrated to us, Shu'bah informed us, from Qatadah, from Abu al-Mutawakkil al-Naji, from Abu Sa'id al-Khudri, who said: A man came to the Messenger of Allah, peace and blessings of Allah be upon him, and said: "O Messenger of Allah, my brother’s stomach has become loose." He said: "Give him honey to drink." He went away, then came back and said: "I gave him to drink, but it only increased his looseness." He said: "Give him honey to drink." He went away, then came back and said: "I gave him to drink, but it only increased his looseness." He said: "Give him honey to drink." He said: He went away, then came back and said: "I gave him to drink, but it only increased his looseness." He said to him the fourth time: "Give him honey to drink." He said: I think he said: So he gave him to drink, and he recovered. The Messenger of Allah, peace and blessings of Allah be upon him, said the fourth time: "Allah has spoken the truth, and your brother’s stomach has lied."