Ash Shu'ara, 145 Ayah
26:145
وَمَآ أَسۡـَٔلُكُمۡ عَلَيۡهِ مِنۡ أَجۡرٍۖ إِنۡ أَجۡرِيَ إِلَّا عَلَىٰ رَبِّ ٱلۡعَٰلَمِينَ ١٤٥
Wa Mā 'As'alukum `Alayhi Min 'Ajrin ۖ 'In 'Ajriya 'Illā `Alá Rabbi Al-`Ālamīna
And I do not ask you for it any payment. My payment is only from the Lord of the worlds.