﴿ ٱلَّذِينَ ءَاتَيْنَٰهُمُ ٱلْكِتَٰبَ يَعْرِفُونَهُۥ كَمَا يَعْرِفُونَ أَبْنَآءَهُمُ ۘ ٱلَّذِينَ خَسِرُوٓا۟ أَنفُسَهُمْ فَهُمْ لَا يُؤْمِنُونَ ﴾

“They unto whom we have vouchsafed revelation aforetime know this as they know their own children; yet those [of them] who have squandered their own selves -it is they who refuse to believe.”

Those to whom We have given the Scripture recognise him that is Muhammad (s) by the descriptions of him in their Scripture as they recognise their sons; those of them who have forfeited their own souls do not believe in him.