Quran 9:11 — Ultimatum (Bara'ah)

If they repent and observe the Contact Prayers (Salat) and give the obligatory charity (Zakat), then they are your brethren in religion. We thus explain the revelations for people who know.

[9:10] They never observe any rights of kinship towards any believer, nor do they uphold their covenants; these are the real transgressors.

[9:12] If they violate their oaths after pledging to keep their covenants, and attack your religion, you may fight the leaders of paganism—you are no longer bound by your covenant with them—that they may refrain.