The Holy Quran 26:201 — Surah Ash-Shu'ara

Arabic text

لَا يُؤْمِنُونَ بِهِۦ حَتَّىٰ يَرَوُا۟ ٱلْعَذَابَ ٱلْأَلِيمَ

Translation

(It is for this reason that) They shall never believe it (the Qur'aan) until they witness a painful (terrible) punishment.

Tafsir (excerpt) — Tafsir Usmani

The disbelievers are certain that the Quran is the word of Allah: that is, when a man becomes habituated to crimes and sins and devotes his faculties to wickedness and rebellion, Almighty Allah too, in accordance with His way, slackens the rein for him and makes the effect of denial and rejection settle in his heart.

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