Holding fast to the Quran

وَٱلَّذِينَ يُمَسِّكُونَ بِٱلْكِتَـٰبِ وَأَقَامُوا۟ ٱلصَّلَوٰةَ إِنَّا لَا نُضِيعُ أَجْرَ ٱلْمُصْلِحِينَ

But those who hold fast to the Book [i.e., the Qur’ān] and establish prayer - indeed, We will not allow to be lost the reward of the reformers.