Sincerity of the Prophet's mission

قُلْ مَآ أَسْـَٔلُكُمْ عَلَيْهِ مِنْ أَجْرٍ إِلَّا مَن شَآءَ أَن يَتَّخِذَ إِلَىٰ رَبِّهِۦ سَبِيلًا

Say, "I do not ask of you for it any payment - only that whoever wills might take to his Lord a way."

قُلْ مَآ أَسْـَٔلُكُمْ عَلَيْهِ مِنْ أَجْرٍ وَمَآ أَنَا۠ مِنَ ٱلْمُتَكَلِّفِينَ

Say, [O Muḥammad], "I do not ask you for it [i.e., the Qur’ān] any payment, and I am not of the pretentious.