Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
Bukhari :: Book 6 :: Volume 60 :: Hadith 445
Narrated Jabir bin 'Abdullah:
The Prophet said, "I was in a seclusion in the cave of Hira........."(similar to the narration related by 'Ali bin Al-Mubarak, 444 above).