﴿ سَنُرِيهِمْ ءَايَٰتِنَا فِى ٱلْءَافَاقِ وَفِىٓ أَنفُسِهِمْ حَتَّىٰ يَتَبَيَّنَ لَهُمْ أَنَّهُ ٱلْحَقُّ ۗ أَوَلَمْ يَكْفِ بِرَبِّكَ أَنَّهُۥ عَلَىٰ كُلِّ شَىْءٍۢ شَهِيدٌ ﴾

“In time We shall make them fully understand Our messages [through what they perceive] in the utmost horizons [of the universe] and within them­selves, so that it will become clear unto them that this [revelation] is indeed the truth. [Still,] is it not enough [for them to know] that thy Sustainer is witness unto everything?”

(We shall show them) We shall show, O Muhammad, to the people of Mecca (Our portents) Our signs, marvels, divine Oneness and power (on the horizons) in different parts of the earth in the form of the ruined remains of the nations who came before them, such as 'Aad, Thamud and those who came after them (and within themselves) and We shall show them in themselves kinds of illnesses, pains, misfortunes and other things (until it will be manifest unto them that it is the Truth) until it is clear to them that what the Prophet says to them is true. (Doth not thy Lord suffice) is it not enough that which Allah has made clear to them of the events of past nations without showing them their own destruction, (since He is Witness over all things) of their works?