The fatwa, or religious edict, issued by Suleiman al-Daya late Saturday accords a religious legitimacy to the truce and could justify any act by Gaza’s government to enforce it.

“Honoring the truce, which was sponsored by our Egyptian brethren, is the duty of each and every one of us. Violating it shall constitute a sin,” the fatwa read…

Hamas’ founding charter calls for Israel’s destruction, but leaders of the group have also said they are ready for a long-term cease-fire with the Jewish state.