﴿ وَقَالَت طَّآئِفَةٌۭ مِّنْ أَهْلِ ٱلْكِتَٰبِ ءَامِنُوا۟ بِٱلَّذِىٓ أُنزِلَ عَلَى ٱلَّذِينَ ءَامَنُوا۟ وَجْهَ ٱلنَّهَارِ وَٱكْفُرُوٓا۟ ءَاخِرَهُۥ لَعَلَّهُمْ يَرْجِعُونَ ﴾

“And some of the followers of earlier revelation say [to one another]: "Declare your belief in what has been revealed unto those who believe [in Muhammad] at the beginning of the day, and deny the truth of what came later, so that they might go back [on their faith];”

Please check ayah 3:74 for complete tafsir.