Sahih Bukhari
Prophetic Commentary on the Quran (Tafseer of the Prophet (PBUH))
Volume: 006 / Book Number: 060 / Hadith Number: 434
Narrated 'Aisha:
Allah's Apostle used to drink honey in the house of Zainab, the daughter of Jahsh, and would stay there with her. So Hafsa and I agreed secretly that, if he come to either of us, she would say to him. "It seems you have eaten Maghafir (a kind of bad-smelling resin), for I smell in you the smell of Maghafir," (We did so) and he replied. "No, but I was drinking honey in the house of Zainab, the daughter of Jahsh, and I shall never take it again. I have taken an oath as to that, and you should not tell anybody about it."