May I ask where you got that notion from ?? I'd have to strongly disagree with it. The term "Allah" is Arabic for "God". This is the same God of Abraham. The God of the Old and New Testament. Muslims trace their geneology back to Ishmael, son of Abraham. The God of Islam is truely the same God that Christians worship. If you disagree on this I recommend that you find an Islam discussion forum and ask a Muslim.
Though Allah, may be the word for God we do not worship the same God We believe that Jesus is not only our savior our messiah, but God in the fleshI don't believe Muslims would acknowledge Jesus as God The Son and this is why we worship a different God John 1:1In the beginning was the Word and the Word was with God, and the Word was God." Jhn 1:2 He was in the beginning with God. Jhn 1:3 All things were made through Him, and without Him nothing was made that was made. 1:14And the Word became flesh and dwelt among us, and we beheld His glory, the glory as of the only begotten of the Father, full of grace and truth. Heb 1:8But to the Son He says:"Your throne, O God, is forever and ever;A scepter of righteousness is the scepter of Your kingdomcol 2:9For in him dwelleth all the fulness of the Godhead bodily.