Questions: In which language was the Taurah, Zabour & Injeel revealed?

Answer:  Allamah Suyuti RA has mentioned in his book Al-Itkan that, majority of the commentators of the Quraan are of the opinion that all heavenly books were revealed in Arabic. It was then translated to the language of the people by Jibreel AS.  [Ma’riful Quraan Vol 5/Page 215]