The Holy Quran 69:50 — Surah Al-Haqqah

Arabic text

وَإِنَّهُۥ لَحَسْرَةٌ عَلَى ٱلْكَـٰفِرِينَ

Translation

This (Qur'aan) shall certainly be a source of remorse (agony) for the Kaafiroon (because they will regret not accepting it when they suffer punishment for their rejection).

Tafsir (excerpt) — Tafsir Usmani

That is, those who fear Allah will take admonition on hearing this Word, while those in whose hearts there is no fear will deny it. But a time is coming when this very Word and their denial of it will be a cause of bitter remorse and regret. Then they will repent: “Alas! Why did we deny this true message, so that today we have had to see this calamity?”

Preview. The full text opens with JavaScript enabled.