Gospel of Barnabas

Raised as an apocryphal text allegedly supporting the claim that Jesus was not really crucified; the host answered that it is a late forgery.

Raised as a supposed extra-biblical gospel predicting Muhammad and undermining Christianity; the hosts responded that it is a late medieval forgery and not genuine apostolic evidence.

Mentioned as a Muslim explanation for substitution at the crucifixion, specifically the claim that Judas was crucified instead of Jesus.

A Muslim guest mentioned this work as a source allegedly naming Muhammad; both sides then treated it as a late forgery rather than an authentic gospel witness.

Raised by a Muslim as a rejected gospel; the host argued it was never part of the Bible and is a late forgery.