Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
Bukhari :: Book 6 :: Volume 60 :: Hadith 482
Narrated Ibn Abbas:
Abu Jahl said, "If I see Muhammad praying at the Ka'ba, I will tread on his neck." When the Prophet heard of that, he said, "If he does so, the Angels will snatch him away."