Until the Time of Muhammad the Fact That Abraham Offered His Son Isaac Not Ishmael for Sacrifice Wasn’t Questioned

No ancient writings question whether Isaac was the son of Abraham offered for sacrifice in obedience to Elohim (later replaced by the ram) until the time of Muhammad, two-and-a half millennia after the time of Abraham, so why should anyway believe the islamic version while considering that the biblical history was written contemporaneous to the events?