A man came to Sayyiduna Umar bin Khattab (may Allah be pleased with him) who had divorced his wife, then took her back but did not inform her. The woman completed her waiting period and got married. So Sayyiduna Umar (may Allah be pleased with him) said: The mistake was yours.
Hadith Referenceسنن سعید بن منصور / كتاب الطلاق / 2491
Hadith Gradingمحدثین:مرسل
Hadith Takhrij«مرسل، وأخرجه سعيد بن منصور فى «سننه» ترقيم الدرالسلفية برقم:، 1314، 1315، 1316، وعبد الرزاق فى «مصنفه» برقم: 10977، 10978، وابن أبى شيبة فى «مصنفه» برقم: 19235، 19240، 19243»