Sahih Bukhari
Prophetic Commentary on the Quran (Tafseer of the Prophet (PBUH))
Volume: 006 / Book Number: 060 / Hadith Number: 336
Narrated Abu Huraira:
I heard Allah's Apostle saying, "Allah will hold the whole earth, and roll all the heavens up in His Right Hand, and then He will say, 'I am the King; where are the kings of the earth?"'