sun_trial_survival_effect

sun_trial_survival_effect = {
	scope:prisoner = {
		release_from_prison = yes

		# Non-imprisoner-same-faith are upset that you threw them out into the desert to die.
		if = { 	
			limit = {
				NAND = {
					faith = scope:imprisoner.faith
					ai_zeal >= low_positive_ai_value
				}
			}
			add_opinion = {
				target = scope:imprisoner
				modifier = angry_opinion
				opinion = -40
			}
		}
		
		# imprisoner-same-faith gain a bonus if they survive the sun trial.
		if = {
			limit = {
				faith = scope:imprisoner.faith
			}
			add_character_modifier = {
				modifier = blessed_by_the_sun_modifier
				years = 15
			}
		}

		# Don't notify the player that they were released from prison (they were already released as part of the interaction).
		hidden_effect = {
			add_character_flag = {
				flag = block_for_prison_release_notification
				days = 3
			}
		}
	}
	scope:imprisoner = {
		consume_imprisonment_reasons = scope:prisoner
		hidden_effect = {
			consume_imprisonment_reasons = scope:prisoner
			consume_banish_reasons = scope:prisoner
			consume_execute_reasons = scope:prisoner
			consume_revoke_title_reason = scope:prisoner
		}
	}
}

As written in game/common/scripted_effects/00_religious_interaction_effects.txt.