A revocation of divorce is a process whereby the man revokes his decree of divorce against his wife during the Iddah period. The Iddah means the period within which a divorced woman or a widow is forbidden by the Muslim law to remarry. It covers 3 to 4 periods of his wife's menstrual cycle. If she is pregnant, it ends upon her delivering her baby. For a widow, her Iddah period is 4 months and 10 days.