Verse Quran
8:56 They are those with whom thou didst make a covenant, but they break their covenant every time, and they have not the fear (of Allah).
8:57 If ye gain the mastery over them in war, disperse, with them, those who follow them, that they may remember.
8:58 If thou fearest treachery from any group, throw back (their covenant) to them, (so as to be) on equal terms: for Allah loveth not the treacherous.
8:72 Those who believed, and adopted exile, and fought for the Faith, with their property and their persons, in the cause of Allah, as well as those who gave (them) asylum and aid,- these are (all) friends and protectors, one of another. As to those who believed but came not into exile, ye owe no duty of protection to them until they come into exile; but if they seek your aid in religion, it is your duty to help them, except against a people with whom ye have a treaty of mutual alliance. And (remember) Allah seeth all that ye do.
9:1 A (declaration) of immunity from Allah and His Messenger, to those of the Pagans with whom ye have contracted mutual alliances.
9:2 Go ye, then, for four months, backwards and forwards, (as ye will), throughout the land, but know ye that ye cannot frustrate Allah (by your falsehood) but that Allah will cover with shame those who reject Him.
9:3 And an announcement from Allah and His Messenger, to the people (assembled) on the day of the Great Pilgrimage,- that Allah and His Messenger dissolve (treaty) obligations with the Pagans. If then, ye repent, it were best for you; but if ye turn away, know ye that ye cannot frustrate Allah. And proclaim a grievous penalty to those who reject Faith.
9:4 (But the treaties are) not dissolved with those Pagans with whom ye have entered into alliance and who have not subsequently failed you in aught, nor aided any one against you. So fulfil your engagements with them to the end of their term: for Allah loveth the righteous.

The Quran's Verse about agreement

compromise, purgatory, arafat, arabic, land, flood, gift, throne, supply, companions of the cave, companions of the left hand, companions of the right hand, companions of uhdud, companions of the right hand, kindred, lining, ancestry, atlas, hunting, handful,