And there is none from the People of the Scripture but that he will surely believe in him [i.e., Jesus] before his death.1 And on the Day of Resurrection he will be against them a witness.
Translation: Saheeh International (English)
1 One interpretation is that "his death" refers to that of Jesus after his return to earth. Or it can mean "the death of every individual from among the People of the Scripture."
There is not one of the People of the Scripture except that they will believe in Jesus (peace be upon him) before his death after he descends towards the end of time. On the Day of Judgement, Jesus (peace be upon him) will bear witness against their actions, whether agreeing with the sacred law or not.