Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))

Bukhari :: Book 6 :: Volume 60 :: Hadith 136

Narrated 'Aisha:

Whoever tells that Muhammad concealed part of what was revealed to him, is a liar, for Allah says:--

"O Apostle (Muhammad)! Proclaim (the Message) which has been sent down to you from your Lord." (5.67)