7:167

وَإِذْ تَأَذَّنَ رَبُّكَ لَيَبْعَثَنَّ عَلَيْهِمْ إِلَىٰ يَوْمِ الْقِيَامَةِ مَن يَسُومُهُمْ سُوءَ الْعَذَابِ إِنَّ رَبَّكَ لَسَرِيعُ الْعِقَابِ وَإِنَّهُ لَغَفُورٌ رَّحِيمٌ

Transliteration:

Wa-ith taaththana rabbuka layabAAathanna AAalayhim ila yawmi alqiyamati man yasoomuhum soo-a alAAathabi inna rabbaka lasareeAAu alAAiqabi wa-innahu laghafoorun raheemun

Word by Word:

And when declared your Lord that He would surely send upon them till (the) Day (of) the Resurrection (those) who would afflict them (with) a grievous [the] punishment. Indeed, your Lord (is) surely swift (in) the retribution, but indeed, He (is) surely Oft-Forgiving, Most Merciful.

Translations:

And lo! Thy Sustainer made it known that most certainly He would rouse against them, unto Resurrection Day, people who would afflict them with cruel suffering: verily, thy Sustainer is swift in retribution - yet, verily, He is [also] much-forgiving, a dispenser of grace.

Behold! thy Lord did declare that He would send against them, to the Day of Judgment, those who would afflict them with grievous penalty. Thy Lord is quick in retribution, but He is also Oft-forgiving, Most Merciful.

And (remember) when thy Lord proclaimed that He would raise against them till the Day of Resurrection those who would lay on them a cruel torment. Lo! verily thy Lord is swift in prosecution and lo! verily He is Forgiving, Merciful.

And when thy Lord declared that He would send against them to the day of Resurrection those who would subject them to severe torment. Surely thy Lord is Quick in requiting; and surely He is Forgiving, Merciful.

And [mention] when your Lord declared that He would surely [continue to] send upon them until the Day of Resurrection those who would afflict them with the worst torment. Indeed, your Lord is swift in penalty; but indeed, He is Forgiving and Merciful.