Surah 32. As-Sajdah, Ayah 23

With this passage the discourse returns to the theme enunciated at the beginning of this surah - namely, the divine origin of the revelation granted to Muhammad, which, as the present passage points out, proceeds from the same source as that granted to Moses (the last of the great apostles of God accepted as such by all the three monotheistic religions, Judaism, Christianity and Islam). Furthermore, the identity of the fundamental truths in all divine revelations, stressed in the above verse, implies an identity of the moral demands made of the followers of those revelations irrespective of period, race or social environment.

 Other possible translations: 1. “Do not be in doubt that Moses received it.” 2. “Do not be in doubt of your meeting with Moses.”

"The Book" is not here coextensive with Revelation. Moses had, revealed to him, a Law, a shari'at, which was to guide his people in all the practical affairs of their life. Jesus, after him, was also inspired by Allah: but his Injil or Gospel contained only general principles and not a Code or shari'at. The holy Prophet was the next one to have a shari'at or "Book" in that sense: for the Qur-an contains both a Code and general principles. This Sura is a Makkan Sura. The Code came later in Madinah. But he is given the assurance that he will also have a Code, to supersede the earlier Law, and complete the Revelation of Allah.

"Its reaching (thee)" : liqa-i-hi. Commentators differ as to the construction of the pronoun hi, which may be translated either "its" or "his". I construe it to refer to "the Book", as that gives the most natural meaning, as explained in the last note.