Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
Bukhari :: Book 6 :: Volume 60 :: Hadith 335
Narrated 'Abdullah:
A (Jewish) Rabbi came to Allah's Apostle and he said, "O Muhammad! We learn that Allah will put all the heavens on one finger, and the earths on one finger, and the trees on one finger, and the water and the dust on one finger, and all the other created beings on one finger. Then He will say, 'I am the King.' Thereupon the Prophet smiled so that his pre-molar teeth became visible, and that was the confirmation of the Rabbi. Then Allah's Apostle recited:
'No just estimate have they made of Allah such as due to Him.' (39.67)