وَعَنْ اِبْنِ عَبَّاسٍ رضى الله عنه
قَالَ: قَالَ رَسُولُ اَللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ -«إِنَّ أَحَقَّ مَا أَخَذْتُمْ عَلَيْهِ حَقًّا كِتَابُ اَللَّهِ»
The Messenger of Allah (sallallahu alayhi wa sallam) said: “The most worthy thing for which you receive payment is Allah’s Book.”.