﴿ وَبِٱلْحَقِّ أَنزَلْنَٰهُ وَبِٱلْحَقِّ نَزَلَ ۗ وَمَآ أَرْسَلْنَٰكَ إِلَّا مُبَشِّرًۭا وَنَذِيرًۭا ﴾

“AND AS a guide towards the truth have We bestowed this [revelation] from on high; with this [very] truth has it come down [unto thee, O Prophet]: for We have sent thee but as a herald of glad tidings and a warner,”

(With truth have We sent it down) We have sent Gabriel to Muhammad (pbuh) with the Qur'an, (and with truth hath it descended) he descended with the Qur'an. (And We have sent thee) O Muhammad (as naught else save a bearer of good tidings) of Paradise (and a warner) from hell.