Surah Sad 38:86

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.

Translation: Saheeh International

Tafsir

Say ‘I do not ask of you in return for this for delivering the Message to you any reward any fee; nor am I an impostor so as to make up the Qur’ān myself.

Excerpt from Tafsir al-Jalalayn, commentary on 38:86, via Quran.com. The reader has the full commentary and 9 more tafsirs.