Al-Fath 48:15

Those who lagged behind will say when you set out to collect the spoils of war, “Let us follow you.” They wish to change the word of Allah[5]. Say, “You will never follow us; this is what Allah has already decreed.” They will then say, “Rather, you are jealous of us[6].” Rather, they do not understand but a little[7].

[5] Allah promised those of the believers who pledged allegiance at Hudaybiyah that the spoils of war obtained from the Jews of Khaybar be exclusively for them.
[6] i.e., you only ask us not to go with you to the spoils of Khsybar to deprive us of our share.
[7] i.e., they do not understand but the material aspects of life.

Those who remained[1511] behind will say when you set out toward the war booty to take it, "Let us follow you." They wish to change the words of Allāh. Say, "Never will you follow us. Thus did Allāh say before." So they will say, "Rather, you envy us." But [in fact] they were not understanding except a little.[1512]

[1511] See footnote to 9:81.
[1512] i.e., they only understood the material aspects of life.

15. Those who lagged behind will say, when you set forth to take the spoils, "Allow us to follow you." They want to change Allâh’s Words. Say: "You shall not follow us; thus Allâh has said beforehand." Then they will say: "Nay, you envy us." Nay, but they understand not except a little.

Those who were left behind will say, when ye set forth to capture booty: Let us go with you. They fain would change the verdict of Allah. Say (unto them, O Muhammad): Ye shall not go with us. Thus hath Allah said beforehand. Then they will say: Ye are envious of us. Nay, but they understand not, save a little.