The Idolators' demand for Signs, and the Response

Allah tells us how the idolators stubbornly demanded signs, meaning that they wanted signs to show them that Muhammad was indeed the Messenger of Allah ﷺ, just as Salih was given the sign of the she-camel. Allah says:

قُلْ

The status of the narrations of the People of the Book quoted by the commentators in their commentaries is also the same. The object of their reproduction in the commentaries is meant to highlight their historical position. They cannot be used for determining what is permitted (halal) and what is not permitted حَرَام (haram).

مَا كُنتَ تَتْلُو مِن قَبْلِهِ مِن كِتَابٍ وَلَا تَخُطُّهُ بِيَمِينِكَ إِذًا لَّارْ‌تَابَ الْمُبْطِلُونَ (And you have never been reciting any book before this, nor have you been writing it with your right hand, had it been so, the people of falsehood would have raised doubts. - 29:48). That is Before the revelation of the Qur'an you could neither read nor write, rather you were unlettered (اُمِّی). If it was not so, and you were literate, then there could have been a possibility of doubt for the infidels to put the blame that you were repeating what you had read in, the earlier books, Torah and Injil, and it was not a new revelation sent down on you by way of prophethood.'