Amir narrates from Sayyiduna Ali (may Allah be pleased with him): When a man gives his wife the choice and she chooses her husband, it is one divorce and the husband has more right to take her back. If the woman chooses herself, she becomes separated by one divorce, and that man will be one of the suitors (who may propose to her).
(b) Sayyiduna Zayd bin Thabit (may Allah be pleased with him) says: If the wife chooses herself, it is three divorces.
(c) Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) says: When a man gives his wife the choice and the wife chooses her husband, nothing is due from him. If the wife chooses herself, it is one divorce and the man has the right to take her back. So the view of Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) on the choice agrees with the view of Sayyiduna Umar (may Allah be pleased with him), and this is what we hold, (as it agrees with) what is reported from Sayyidah Aishah (may Allah be pleased with her) from the Prophet (peace and blessings be upon him) concerning the choice, and with the hadith of Rukanah from the Prophet (peace and blessings be upon him) concerning (the word) al-battah, that when he intends one (divorce) "it will be a revocable divorce."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الخلع والطلاق / 15029