(35:8) Then is one to whom the evil of his deed has been made attractive so he considers it good [like one rightly guided]? For indeed, Allah sends astray whom He wills and guides whom He wills. So do not let yourself perish over them in regret. Indeed, Allah is Knowing of what they do.
Muhammad Taqi-ud-Din al-Hilali and Muhammad Muhsin Khan,
(35:8) Is he, then, to whom the evil of his deeds made fairseeming, so that he considers it as good (equal to one who is rightly guided)? Verily, Allah sends astray whom He wills, and guides whom He wills. So destroy not yourself (O Muhammad SAW) in sorrow for them. Truly, Allah is the AllKnower of what they do!
Mohammed Marmaduke William Pickthall
(35:8) Is he, the evil of whose deeds is made fairseeming unto him so that he deemeth it good, (other than Satan’s dupe)? Allah verily sendeth whom He will astray, and guideth whom He will; so let not thy soul expire in sighings for them. Lo! Allah is Aware of what they do!
Abdullah Yusuf Ali
(35:8) Is he, then, to whom the evil of his conduct is made alluring, so that he looks upon it as good, (equal to one who is rightly guided)? For Allah leaves to stray whom He wills, and guides whom He wills. So let not thy soul go out in (vainly) sighing after them: for Allah knows well all that they do!
Mohammad Habib Shakir
(35:8) What! is he whose evil deed is made fairseeming to him so much so that he considers it good? Now surely Allah makes err whom He pleases and guides aright whom He pleases, so let not your soul waste away in grief for them; surely Allah is Cognizant of what they do
(35:8) So, is he (righteous), the odiousness of whose deed (s) had been adorned (i.e; made attractive) for him, so that he sees them as fair (deeds)? Then surely Allah leads into error whomever He decides, and guides whomever He decides; so do not let yourself go away in regrets for them. Surely Allah is Ever-Knowing of whatever they work out.
(35:8) Is one whose evil deeds is decked out to be appealing to him so that he considers it as good (like him who follows Gods guidance)? God leads astray whom He wills and guides whom He wills. So do not let yourself perish in bitter regrets on their behalf (because they refuse faith). Surely God has full knowledge of all that they do.
Amatul Rahman Omar
(35:8) Can the person, the evil of whose conduct is made to appear pleasing and regards it as good, (be in a position to discern the truth and so be rightly guided). Allâh forsakes him who wishes to go astray (as it is His law). And He guides (him) aright who wishes (to get right guidance). So do not fret yourself to death because of them. Surely, Allâh knows what they do.
(35:8) Is who his bad/evil deed was decorated/beautified to (for) him, so he saw it (as) good/beautiful, so then God misguides whom He wills/wants, and He guides whom He wills/wants, so do not (let) your self go/wipe out on (for) them (in) grief/sorrow, that truly God (is) knowledgeable with what they make/do .
(35:8) Can he, the evil of whose deed is made to look attractive to him so that he considers it good, (be like him who is guided)? God leads whosoever He please astray and guides whosoever He will. So do not waste away your self with grief for them. God is indeed cognisant of things they do.
A. J. Arberry
(35:8) And what of him, the evil of whose deeds has been decked out fair to him, so that he thinks it is good? God leads astray whomsoever He will, and whomsoever He will He guides; so let not thy soul be wasted in regrets for them; God has knowledge of the things they work.
Abdul Majid Daryabadi
(35:8) Is he, then, whose evil work hath been made fair-seeming unto him, so that he deemeth it good, be as he who rightly perceiveth the truth? Verily Allah sendeth astray whomsoever He listeth, and guideth whomsoever He listeth; so let not thine soul expire after them in sighings; verily Allah is the Knower of that which they perform.
Maulana Mohammad Ali
(35:8) Can one whose evil deeds seem attractive and virtuous to him (be compared to a truly righteous person)? God guides or causes to go astray whomever He wants. (Muhammad), do not be grieved because of their disbelief. God knows well whatever they do.
Hamid Abdul Aziz
(35:8) 35:7 As for those who disbelieve, they shall have a severe punishment, and as for those who believe and do good, they shall have forgiveness and a great reward.
(35:8) So will one whose misdeeds are made seeming good to him – so he deems them good – be ever equal to the one who is upon guidance? Therefore indeed Allah sends astray whomever He wills, and guides whomever He wills
(35:8) What of him whose evil deed was made attractive to him, and so he regards it as good? God leads astray whomever He wills, and He guides whomever He wills. Therefore, do not waste yourself sorrowing over them. God knows exactly what they do.
Ahmed Raza Khan
(35:8) So will one whose misdeeds are made seeming good to him so he deems them good be ever equal to the one who is upon guidance? Therefore indeed Allah sends astray whomever He wills, and guides whomever He wills; so may not your life be lost in despairing after them; Allah knows their deeds very well.
(35:8) Is he whose evil deeds are made alluring to him so that he looks upon them as good, [equal to the man who is rightly guided]? God leaves to stray whom He wills, and guides whom He wills. Do not destroy yourself with grief for them. God has full knowledge of all their actions.
(35:8) Is he, then, to whom the evil of his deeds is made fairseeming, so that he considers it as good Verily, Allah sends astray whom He wills, and guides whom He wills. So destroy not yourself in sorrow for them. Truly, Allah is the All-Knower of what they do!
Ali Quli Qarai
(35:8) Is someone the evil of whose conduct is presented as decorous to him, so he regards it as good…. Indeed Allah leads astray whomever He wishes, and guides whomever He wishes. So do not fret yourself to death regretting for them. Indeed Allah knows best what they do.
Hasan al-Fatih Qaribullah and Ahmad Darwish
(35:8) What then of he whose evil deeds have been decorated fair to him and thinks them to be good? Allah leads astray whomsoever He will and whomsoever He will He guides. Do not let your soul be wasted in regrets for them; Allah has knowledge of all they do.
That is translated surah Fatir ayat 8 (QS 35: 8) in arabic and english text, may be useful.