Musannaf Ibn Abi Shaybah 20000 — A man who informs his wife

Ibrahim (may Allah have mercy on him) said: Abu Kanaf (may Allah have mercy on him) divorced his wife and then went on a journey, and took his wife back. He also wrote a letter to her about it and took witnesses to the taking back. The letter did not reach the woman, and when her waiting period was completed she married. Abu Kanaf (may Allah have mercy on him) came to Sayyiduna Umar (may Allah be pleased with him) and related the whole matter. Sayyiduna Umar (may Allah be pleased with him) said: "You have the greater right to this woman as long as he (the second husband) has not consummated the marriage with her."