Sahih Bukhari
Prophetic Commentary on the Quran (Tafseer of the Prophet (PBUH))
Volume: 006 / Book Number: 060 / Hadith Number: 337
Narrated Abu Huraira:
The Prophet said, "I will be the first to raise my head after the second blowing of the trumpet and will see Moses hanging the Throne, and I will not know whether he had been in that state all the time or after the blowing of the trumpet."