تفسير : and from his narration on the authority of ibn 'abbas that he said concerning the interpretation of allah's saying (by the mount (wa't-tur)): '(by the mount) he says: allah swears by the mount of zubayr and every mount is a tur as in the syriac and coptic languages, but allah means here the mount whereon allah spoke with moses, and this mount is called the mount of midian or zubayr.
Jalāl al-Dīn al-Maḥallī
تفسير : by the mount, that is, the [name of the] mountain on which god spoke to moses,