﴿ أَمْ تَسْـَٔلُهُمْ خَرْجًۭا فَخَرَاجُ رَبِّكَ خَيْرٌۭ ۖ وَهُوَ خَيْرُ ٱلرَّٰزِقِينَ ﴾

“Or dost thou [O Muhammad] ask of them any worldly recompense? But [they ought to know that] recompense from thy Sustainer is best, since He is the best of providers!”

Please check ayah 23:75 for complete tafsir.