First of all:
We believe in God as One God the Creator, the Almighty and Most Gracious: the Lord of all nations.
We believe in God and the Quran revealed to us, and in the revelations given to Abraham, Ishmael, Isaac, Jacob and his twelve sons,
And we believe in what was given to Moses and Jesus.
And we believe in what all prophets given from their Lord
We don't discriminate between any of them: so that we might believe in some and disbelieve in others: no, we believe in the revelation given to all of them without distinction in our believing about them.
Quran 2: 136, which means:
(
Say [O Muslims]: "We believe in God and [the Quran] that is revealed to us,
and that which was revealed to Abraham, and Ishmael and Isaac, and Jacob, and the Patriarchs,
and that which Moses and Jesus received,
and that which the Prophets received from their Lord.
We make no distinction concerning any of them,
and to Him alone we have submitted ourselves.")
See the wonderful explanation of this great aya, by Mohammed-Ali Hassan Al-Hilly
http://quran-ayat.com/pret/2.htm#a2_136
quran-ayat.com/pret/2.htm#a2_136