And those who have believed and done righteous deeds - We will surely assign to them of Paradise [elevated] chambers beneath which rivers flow, wherein they abide eternally. Excellent is the reward of the [righteous] workers
Advice to migrate and the Promise of Provision and a Goodly Reward
Allah commands His believing servants to migrate from a land in which they are not able to establish Islam, to the spacious earth of Allah where they can do so, by declaring Allah to be One and worshipping Him as He has commanded. Allah says:
(O My servants who believe! Certainly, spacious is My earth. Therefore worship Me.) When things became too difficult for the believers in Makkah who were in a weak position and were oppressed, they left and migrated to Ethiopia, where they were able to practice their religion. The Muslims found Ethiopia the best place for guest; where Ashamah, the Negus or king, may Allah have mercy on him, gave them refuge, helped them, supported them, and honored them in his land. Later, the Messenger of Allah ﷺ and his remaining Companions migrated to Al-Madinah, formerly known as Yathrib, may Allah protect it. Then Allah says:
وَالَّذِينَ آمَنُوا وَعَمِلُوا الصَّالِحَاتِ لَنُبَوِّئَنَّهُم مِّنَ الْجَنَّةِ غُرَفًا تَجْرِي مِن تَحْتِهَا الْأَنْهَارُ خَالِدِينَ فِيهَا (And those who believe and do righteous deeds, We shall accommodate them in mansions of the Paradise beneath which rivers flow, where they will live forever - 29:58).
The other risk involved in hijrah (migration) is about the arrangement of sustenance in the strange land. One does manage the sustenance at one's own place through employment, trade, cultivation, or inherited land, but on migration all that is left behind. So, how would he manage the sustenance in the new environment? Answer to this apprehension is given in the next three verses by saying that you regard the mundane possessions and arrangements as the cause of your sustenance, but who has given you all this? It is your mistake to consider that you have arranged it all on your own. Without the help and will of Allah nothing could be procured. If He wills, one gets unlimited sustenance without any visible means, and if He does not, then despite all sorts of visible means, one does not get anything. For elaborating this point first it is said:
Tazkirul Quran
Maulana Wahiduddin KhanOn ayahs 55–59
Man’s deeds make his Paradise and his deeds make his Hell too. Were it possible to view the consequences of the deeds of one who had adopted the way of denial and insolence, it would be seen that his apparently great deeds actually signalled the punishment which he merited and which lay in wait for him. Death is but to come and dispatch him to the world he has built for himself. Most of a man’s arrogance is nothing more than the result of his ignorance of the reality pertaining to his own existence. If this ignorance were to be replaced by knowledge, he would become a completely different man.
Uthmani text of the Madinah mushaf (King Fahd Complex). Translation: Saheeh International. Tafsir via Quran.com.