﴿ وَإِذَا قِيلَ لَهُمْ ءَامِنُوا۟ كَمَآ ءَامَنَ ٱلنَّاسُ قَالُوٓا۟ أَنُؤْمِنُ كَمَآ ءَامَنَ ٱلسُّفَهَآءُ ۗ أَلَآ إِنَّهُمْ هُمُ ٱلسُّفَهَآءُ وَلَٰكِن لَّا يَعْلَمُونَ ﴾

“And when they are told, "Believe as other people believe," they answer, "Shall we believe as the weak-minded believe?" Oh, verily, it is they, they who are weak-minded -but they know it not!”

(And when it is said unto them) i.e. to Jews, (believe) in Muhammad (pbuh) (as the people believe), i.e. 'Abdullah Ibn Salam and his companions, (they say: Shall we believe) in Muhammad (pbuh) and the Qur'an, (as the foolish believe?), i.e. as the stupid and ignorant do, (Surely they are the fools) the stupid and ignorant. (But they know not) that they are so.