قَالُوا بَلْ أَنتُمْ لَاا مَرْحَبًا بِكُمْNay, you (too)! No welcome for you!means, those who are coming in will say,قَالُوا بَلْ أَنتُمْ لَاا مَرْحَبًا بِكُمْ أَنتُمْ قَدَّمْتُمُوهُ لَنَاNay, you (too)! No welcome for you! It is you who brought this upon us,meaning, `you called us to that which led us to this fate.'فَبِيْسَ الْقَرَارُso evil is this place to stay in!means, evil is this abode and this destination.