This conquest and promise of booty, according to Ibn Kathir, is "in reference to the goodness that Allah the Exalted and Most Honored caused to happen to the Companions on account of the peace treaty between them and
their disbelieving enemies. Ever after that, the Companions gained abundant, general and continuous benefits and accomplishments, leading to the conquest of Khaybar and Makkah and then the various surrounding provinces and areas. They earned tremendous glory, triumphs and an elevated and honorable status in this life and in the Hereafter."

"Allah was well pleased with the believers when they swore allegiance to you beneath the tree, and he knew what was in their hearts, and he sent down sakina on them, and has rewarded them with a near conquest, and much booty that they will capture. Allah is always mighty, wise. Allah promises that you will capture much booty, and has given you this in advance, and has kept men's hands from you, so that it may be a sign for the believers, and so that he may guide you on a right path." (Qur'an 48:19-20)