A--- Allah the Almighty cited the following only: the Glorious Qur'an, the Taurat (Torah), the Injeel (Gospel), the Zabur (Psalms), the Suhuf (Pages) of Musa (Moses) and Ibrahim (Abraham). He mentioned the rest in total, saying: {Allah! La ilaha illa Huwa (none has the right to be worshipped but He), the Ever Living, the One Who sustains and protects all that exists. It is He Who has sent down the Book (the Qur'an) to you (Muhammad (Peace be upon him) with truth, confirming what came before it. And He sent down the Taurat (Torah) and the Injeel (Gospel), aforetime}. (Al `Imran, 2-4)

Allah the Almighty says: {And to Dawud (David) We gave the Zabur (Psalms)}. (An-Nisa', 163 & Al-Isra', 55)

Allah the Almighty says: {Or is he not informed with what is in the Pages (Scripture) of Musa (Moses), and of Ibrahim (Abraham)

who fulfilled (or conveyed) all that (Allah ordered him to do or convey)}. (An-Najm, 36, 37) Allah says: {Indeed We have sent Our Messengers with clear proofs, and revealed with them the Scripture and the Balance (justice) that mankind may keep up justice}. (Al-Hadid, 25)

Thus, we must believe in what was cited in detail and what was in total and say nothing but what Allah the Almighty Himself says: (Say: I believe in whatsoever Allah has sent down of the Book [all the holy Books, - this Qur'an and the Books of the old from the Taurat (Torah), or the Injeel (Gospel) or the Pages of Ibrahim (Abraham)]). (Ash-Shura, 15)