Taha 20:114

فَتَعَـٰلَى ٱللَّهُ ٱلْمَلِكُ ٱلْحَقُّ ۗ وَلَا تَعْجَلْ بِٱلْقُرْءَانِ مِن قَبْلِ أَن يُقْضَىٰٓ إِلَيْكَ وَحْيُهُۥ ۖ وَقُل رَّبِّ زِدْنِى عِلْمًا

Fataʿālā l-lahu l-maliku l-ḥaqu walā taʿjal bil-qur'āni min qabli an yuq'ḍā ilayka waḥyuhu waqul rabbi zid'nī ʿil'man

So high [above all] is Allāh, the Sovereign, the Truth. And, [O Muḥammad], do not hasten with [recitation of] the Qur’ān before its revelation is completed to you, and say, "My Lord, increase me in knowledge."