Sayyiduna Jubayr bin Mut'im (may Allah be pleased with him) narrated: I came to the Messenger of Allah (peace and blessings be upon him) regarding the ransom of the people of Badr, and I heard him (peace and blessings be upon him) reciting in the Maghrib prayer: "Wal-Tur, wa kitabin mastur" (By the Mount, and by a Book inscribed).
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 1480