How Those Who lived a Life of Luxury disbelieved in the Messengers and were misled by Their pursuit of Wealth and Children
Allah is consoling His Prophet and commanding him to follow the example of the Messengers that came before him. He tells him that no Prophet was ever sent to a township but those among its people who lived a life of luxury disbelieved in him, and the weaker people of the town followed him. The people of Nuh, peace be upon him, said to him:
أَنُؤْمِنُ لَكَ وَاتَّبَعَكَ الاٌّرْذَلُونَ
(Shall we believe in you, when the weakest (of the people) follow you) (26:110)
(nor do we see any follow you but the meanest among us and they (too) followed you without thinking) (11:27). The leaders among the people of Salih said:
In the last sentence of verse فَأُولَـٰئِكَ لَهُمْ جَزَاءُ الضِّعْفِ بِمَا عَمِلُوا وَهُمْ فِي الْغُرُفَاتِ آمِنُونَ (Therefore, such people will have the double reward for what they did, and they will be at peace in the upper chambers (of Paradise). - 34:37), mentioned there is the state of the people of 'Iman (faith) and good deeds for they are the ones acceptable with Allah. Whether or not they are recognized in this world, their return in the Hereafter will be double or manifold. The word: ضِعف (di` f) with a kasrah of the letter: (dad) is a verbal noun which means 'like a thing' or 'the likes of a thing'. The sense is that the way wealthy people keep amassing their wealth in the worldly life, Allah Ta’ ala would increase the return for His accepted people in the Hereafter many times over. For example, the return for one deed would be ten of its likes, or ten times as much. Then, it is not so restricted either. Granted the person's sincerity in deed and in view of other causes and considerations, the return of one such deed can go up to seven hundred times. That returns at this high scale would also be given as stands proved from Sahih ahadith. It is interesting that this too is not restricted. It could be more than that. In short, these people of faith and good deed shall be residing in the elevated chambers of Paradise in perfect peace and forever shielded against all sorrows.
The word: غُرُفَات (ghurufat) is the plural form of: غُرفَۃ (ghurfah). It denotes a part of the mansion considered distinct and high as compared to other parts.
Tazkirul Quran
Maulana Wahiduddin KhanOn ayahs 33–38
Denial of Truth is the greatest crime. The result of this crime does not become apparent to an individual in this world. Therefore, he goes on fearlessly denying the Truth. But, in the Hereafter, when the adverse effect of denying the Truth impinges on the deniers, they will be caught in a state of turmoil. The common people, in this world, were proud of their leaders, but once in the Hereafter, they will curse them. In reply, their leaders will say, ‘Don’t blame us to cover up your ignominy. It was not we who misguided you but your own desires. You were with us simply because our words were in consonance with your own desires. You wanted a religion in which you could get credit for being righteous without taking much trouble and without changing yourself, and we provided you with it. You put our noose around your neck of your own accord; otherwise, we had no power to do so.’
Uthmani text of the Madinah mushaf (King Fahd Complex). Translation: Saheeh International. Tafsir via Quran.com.