وَإِن مِن أَهلِ الكِتابِ إِلّا لَيُؤمِنَنَّ بِهِ قَبلَ مَوتِهِ ۖ وَيَومَ القِيامَةِ يَكونُ عَلَيهِم شَهيدًا

And there is none from the People of the Scripture but that he will surely believe in Jesus before his death. And on the Day of Resurrection he will be against them a witness.