إِنَّا نَحْنُ نَزَّلْنَا عَلَيْكَ الْقُرْآنَ تَنزِيلًا
[76:23]
Surely We Ourselves have revealed the Quran to you revealing (it) in portions.
It is We Who have sent down the Qur'an to thee by stages.
Lo! We, even We, have revealed unto thee the Qur'an, a revelation;