So by oath of the things you see. 38 And all that ye see not 39 that this is the speech of an honourable Messenger, 40 And it is not the word of a poet; little do you believe. 41 Nor is it the speech of a sooth-sayer. Little are ye admonished. 42 It has been sent down by the Lord of all the worlds. 43 And if he [i.e., the Prophets] had forged this Discourse and thereafter ascribed it to Us, 44 We would have seized him by his right hand, 45 and would indeed have cut his life-vein, 46 not one of you could have prevented it from him. 47 And verily, this [Qur'an] is a reminder to all the God-conscious! 48 We know very well that there are some among you who reject Our signs -- 49 and (on the Day of Judgment) this will be a great source of regret for the unbelievers. 50 And verily it is the truth of assured certainty. 51 (Muhammad), glorify the name of your Lord, the Great One. 52