lation and prophecy. One of the verses that told about the hidden future is Gods saying:
And [remember] when God promised you one of the two bands [of the enemy], that it should be yours and you longed that [a band] other than the armed one might be yours. And God willed that He should cause the Truth to triumph by His word, and cut the root of the rejecters of faith (Q. ٨:٧).
This verse was revealed concerning the battle of Badr. In it God promises the believers to give them victory over their enemy and to eradicate the rejecters. This was promised the believers though they were few in number and badly equipped, to the extent that the only rider among them was al-Miqdad [who had a horse]--ormaybe it was al-Zubayr b. al-Awwam-whereas the rejecters of faith were numerous and well equipped. Indeed, the verse describes their enemy as the "armed one," and the believers were afraid to fight them. But God willed "that He should cause the Truth to triumph by His word." Thus, God fulfilled His promise to the believers, and gave them a victory over their enemy and cut the source of the unbelievers.
In another verse, God says:

So proclaim that which you are commanded, and renounce the idolaters. Lo! We de‌ fend you from the scoffers, who set some other god along with God. But they will come to know (Q. ١٥:٩٤-٩٦).

These verses were revealed in Mekka in the early days of Islam. The circumstances of their revelation have been explained in a tradition reported by al-Bazzaz and al‌ Tabari, as related by Anas b. Malik, who said that they were revealed when the Prophet was passing among some people of Mekka. They taunted him behind his back, say‌ ing, "This is the person who claims that he is a prophet and that Gabriel supports him."٢٥ Thus, the verses spoke about the triumph of the Prophets mission, and said that God shall give him victory, and shall defeat the unbelievers who had opposed him and mocked his claim to prophethood, and had treated him contemptuously. This was at a time when no one imagined that the Quraysh would decline in power and lose its authority, and that the Prophet would be able to defeat them.
A similar verse is Gods saying:
He it is who has sent His Messenger with guidance and the religion of truth, that He may make it conqueror of all religions, however much the unbelievers may be averse (Q. ٦١:٩).

Still another prophecy is Gods saying:

The Romans have been defeated in the nearer land,٢٦ and they, after their defeat, will be victorious (Q. ٣٠:٢-٣).

What this verse prophesied happened within less than ten years. Thus, the Byzantine monarch was victorious, and his army entered the land of the Persians.
Another prophecy is Gods saying:

Or they say: "We are a host victorious?" The hosts will all be routed and will turn and flee (Q. ٥٤:٤٤-٤٥).

Thus, God informed [the Prophet] about the defeat which was to be incurred on the rejecters of faith, that they shall disperse and their dominion shall be suppressed.