The Jewish holy book, revealed to Moses (known as Musa in Islam), which teaches that Allah had messengers before Muhammad, contains the Ten Commandments, and according to the Qur'an contains the judgement of Allah
A book believed to have been given to Isa (Jesus), the meaning of which has been changed over time, which teaches the revelations that Muslims believe were revealed by Allah to Isa, and which Muslims think reveals the coming of Muhammad