Surah Saba' (The Sheba), Verse 47

قُلْ مَا سَاَلْتُكُمْ مِّنْ اَجْرٍ فَهُوَ لَكُمْ اِنْ اَجْرِیَ اِلَّا عَلَی اللّٰهِ وَهُوَ عَلٰی كُلِّ شَیْءٍ شَهِیْدٌ ۟

Qul maa sa-altukum min ajrin fahuwa lakum in ajriya illaa 'alal laahi wa Huwa 'alaa kulli shai'in Shaheed

“Say: "No reward do I ask of you: it is (all) in your interest: my reward is only due from Allah: And He is witness to all things."”

Quran 34:47 (Yusuf Ali Translation)