Quran 26:3 — The Poets (Al-Shu`ara')

لَعَلَّكَ بٰخِعٌ نَفسَكَ أَلّا يَكونوا مُؤمِنينَ

You may blame yourself that they are not believers.

[26:2] These (letters) constitute proofs of this clarifying scripture.

[26:4] If we will, we can send from the sky a sign that forces their necks to bow.