It is narrated from Sayyiduna Umar bin Khattab (may Allah be pleased with him) that he said: If a husband divorces his wife and informs her, then takes her back (revokes the divorce) but does not inform her until the waiting period ('iddah) passes, then he has no right over her anymore.
Hadith Referenceسنن سعید بن منصور / كتاب الطلاق / 2494
Hadith Gradingمحدثین:مرسل
Hadith Takhrij«مرسل، «انفرد به المصنف من هذا الطريق»»