Surely those who swear allegiance to you do but swear allegiance to Allah. The Hand of Allah is on top of their hands (since Allah has manifested Himself in your body, He also has manifested Himself in your hand). Therefore whoever breaks (his covenant), he breaks it against his own soul (as he does not fulfill his vow, covenant, he causes his degrees to fall to negative), and whoever is faithful to his covenants with Allah (fulfills his oath, vow and covenant) then the Mighty Reward will be granted to him (the joy of this world and also heaven will be given).
Amongst the Arabs who lagged behind will say to you: “Our possessions and our families kept us occupied, so ask forgiveness for us”. They say with their tongues what is not in their hearts. Say: “Who then has any power at all to prevent any thing (coming) from Allah if He intends to do you harm or if He intends to do you good? Nay (no way), Allah is Ever All-Aware of what you do”.
Nay! You rather assumed that the Messenger and the believers would not return to their families ever, and this (assumption) was made fair-seeming in your hearts. You assumed an evil conjecture and you became a people worthy to perish.
And whoever does not believe in Allah and His Messenger, then surely We have prepared for the disbelievers a blazing Fire (hell).
And Allah’s is the Dominion of the heavens and the earth. He forgives whom He wills and torments whom He wills, and Allah is Ever Oft-Forgiving, Most Merciful.
Those who lagged behind (from the battle) will say when you go forth to take the bounty: “Let (allow) us (that) we may swear allegiance to you”. (They) want to change the Word of Allah. Say (to them): “You cannot swear allegiance to us. Allah ordered so before”. Then (they) will say: “Nay! You are jealous of us”. Nay, they do not understand but a little.