'Indeed, your God' means: the One whom you have taken as deities besides Him; 'is One' means: for division does not bring about good, due to the incapacity that is far removed from perfection, which cannot exist without Him. So to Him - not to others - you will be returned, to judge between you in that in which you were differing. And He is the One who sent down this Book with His might and mercy, and He guarded it from confusion and others, by what He will mention of His greatness and majesty. If He were not One, the matter of this assembly, warning, and recitation, and what follows from it would be confused. Thus, the order of this existence, which we observe, would be confused, just as we observe in the conditions of kingdoms when the kings differ, in changing customs and abrogating the laws that those before them had established, and all that has effects and characteristics. And we observe this existence as He has established it - glorified and exalted is He - nothing of it changes from the state that He has defined for it. So He has taught us that He is One without a doubt, unique in greatness; there is no equal to Him without a doubt. Imam Abu Ja'far ibn al-Zubayr said: When Surah 'Ya-Sin' contained great warnings and tremendous guidance, and what the fortunate one is guided by considering some of it, and the one who reflects engages with it in obtaining his needs and obligations; and he bears witness that the King in totality is One, even if the face of the opposer and denier is turned away. He followed it (glorified and exalted is He) with an oath on His oneness, saying (glorified and exalted is He): 'By those who stand in rows' [as-Saffat: 1]; the verse, until His saying (glorified and exalted is He): 'Indeed, your God is One' [as-Saffat: 4]; until His saying: 'And the Lord of the Easts' [as-Saffat: 5]. Then the speech returned to the warning of His amazing creations, and He said (glorified and exalted is He): 'Indeed, We adorned the nearest heaven with the adornment of stars' [as-Saffat: 6]; until His saying: 'A piercing meteor' [as-Saffat: 10]. Then He followed with the mention of the stubbornness of those who denied, along with the clarification of the matter, its clarity, and the weakness of what they were created from: 'Indeed, We created them from sticky clay' [as-Saffat: 11].