فَمَنْ Then whoever یَّعْمَلْ does مِنَ [of] الصّٰلِحٰتِ [the] righteous deeds وَ هُوَ while he مُؤْمِنٌ (is) a believer فَلَا then not كُفْرَانَ (will be) rejected لِسَعْیِهٖ ۚ [of] his effort وَ اِنَّا And indeed We لَهٗ of it كٰتِبُوْنَ (are) Recorders وَ حَرٰمٌ And (there is) prohibition عَلٰی upon قَرْیَةٍ a city اَهْلَكْنٰهَاۤ which We have destroyed اَنَّهُمْ that they لَا not یَرْجِعُوْنَ will return حَتّٰۤی Until اِذَا when فُتِحَتْ has been opened یَاْجُوْجُ (for) the Yajuj وَ مَاْجُوْجُ and Majuj وَ هُمْ and they مِّنْ from كُلِّ every حَدَبٍ elevation یَّنْسِلُوْنَ descend
(21:94) Then whosoever does righteous works, while believing, his striving will not go unappreciated. We record them all for him.
(21:95) It has been ordained against every town that We ever destroyed that they shall not return92 (to enjoy a new lease of life)
(21:96) until Gog and Magog are let loose, and begin swooping from every mound,
92. This verse may be interpreted in three ways. First, it can mean that once a community has been subjected to God’s scourge, it can never have a fresh lease of life, a rejuvenation. Second, that once a community is destroyed, it never has the chance to be tested by God again. The only occasion when it will undergo any such test is on the Day of Judgement. Third, when a community goes too far with its inequity and transgression, and when its deviation from the true path reaches a high watermark, God will destroy it. Such a community will be denied the opportunity to repent and return to God for it is unable to relinquish its error and so embrace true guidance.