Quran 79:18

And say to him, 'Would you [be willing to] purify yourself

— Saheeh International

and ask him, “Do you want to purify yourself [of sin]?

— M. A. S. Abdel Haleem

And say to him: "Would you purify yourself (from the sin of disbelief by becoming a believer)?"

— Muhammad Muhsin Khan & Muhammad Taqi-ud-Din al-Hilali