The Victory of the Messengers and the Believers

إِنَّا لَنَنصُرُ رُسُلَنَا وَالَّذِينَ ءَامَنُواْ فِى الْحَيَوةِ الدُّنْيَا

(Verily, We will indeed make victorious Our Messengers and those who believe in this world's life). As-Suddi, "Allah never sends a Messenger to a people and they kill him or some of the believers who call them to the truth, then that generation passes away, but He then sends them someone who will support their call and will seek vengeance for their blood from those who did that to them in this world. So the Prophets and believers may be killed in this world, but their call will prevail in this world." Allah granted victory to His Prophet Muhammad ﷺ and his Companions over those who had opposed him, disbelieved in him and shown hostility towards him. He caused His Word and His religion to prevail over all other religions, commanded him to emigrate from his people to Al-Madinah, where He gave him supporters and helpers. Then He caused him to prevail over the idolators on the day of Badr, when He granted him victory over them and he humiliated them, killing their leaders and taking their elite prisoner, driving them before him in chains. Then he did them the favor of accepting ransom from them. Shortly after that, Allah enabled him to conquer Makkah, and he rejoiced in his return to his homeland, the sacred and holy land of Al-Haram. Through him, Allah saved it from its disbelief and Shirk. Then Allah enabled him to conquer the Yemen, and the entire Arabian Peninsula submitted to him, and the people entered the religion of Allah in crowds. Then Allah took him (in death), because of his high status and honor, and He established his Companions as his Khalifahs. They conveyed the religion of Allah from him, called mankind to Allah, they conquered many regions, countries and cities, and opened people's hearts, until the call of Muhammad ﷺ spread throughout the world, east and west. This religion will continue to prevail until the Hour begins. Allah says:

In verse 56, it was said: إِن فِي صُدُورِ‌هِمْ إِلَّا كِبْرٌ‌ مَّا هُم بِبَالِغِيهِ (there is nothing in their hearts but pride of greatness that they are not [ able ] to reach). It means that people who quarrel in the matter of the verses of Allah without having any valid argument really look forward to rejecting this faith simply because their hearts are filled with pride and arrogance. They would like to stay ahead in the game and are so dim-witted that they have taken for granted that they have this position of strength as a result of their staunch adherence to their faith, and if they were to surrender this stance by becoming Muslims, they will be left without any power and territory of their own. The Qur'an said: مَّا هُم بِبَالِغِيهِ (they are not [ able ] to reach), that is, these people will never reach the goals of their assumed pride, greatness and state power without embracing Islam. However, had they embraced Islam, honor and greatness would have followed in their footsteps. (Qurtubi)