And from his chain of transmitters on the authority of Ibn 'Abbas that he said in explanation of Allah's words (Alif. Lam. Mim. Ra.): '(Alif. Lam. Mim. Ra.) this means: I am Allah; I know what you do and say; it is also said that this is an oath by which Allah swore. (These are verses of the Scripture) this surah consists of verses of the Scripture. (That which is revealed unto thee from thy Lord is the Truth) He says: The Qur'an is the Truth from your Lord, (but most of mankind) the people of Mecca (believe not) in Muhammad (pbuh) or in the Qur'an.