hasan_evangelize_province_trigger

hasan_evangelize_province_trigger = {
	save_temporary_scope_as = county
	scope:county.faith = {
		# Religion is same as Hasan's (i.e. Muslim)
		#religion = root.religion # QA thinks its more fun without this!
		NOR = {
			# Faith is different from Hasan's
			custom_tooltip = {
				text = zealous_missionary_start_decision_other_faith_location
				NOT = { character:41702 ?= root }
				this = root.faith
			}
			# Hasan's own story only needs a different rite, so Ismaili counties stay valid
			custom_tooltip = {
				text = hasan_evangelize_other_rite_location_tt
				character:41702 ?= root
				scope:county.rite = root.rite
			}
			# County is not held by it's Faith's Religious Head
			custom_tooltip = {
				text = is_held_by_hof_tt
				religious_head ?= scope:county.holder
			}
		}
	}
	development_level <= 25
	custom_tooltip = {
		text = has_tougher_to_convert_tt
		NOT = { has_county_modifier = tougher_to_convert }
	}
	custom_tooltip = {
		text = 0_or_below_county_opinion_tt
		county_opinion <= 0
	}
	custom_tooltip = {
		text = NOT_IS_HOLY_SITE_TRIGGER
		NOT = {
			any_direct_de_jure_vassal_title = { is_holy_site_of = scope:county.faith }
		}
	}
}

As written in game/common/scripted_triggers/07_ep3_triggers.txt.