Nafi' narrates from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both): When the husband entrusts his authority to the wife, whatever the wife decides will stand; but if the husband objects, saying that he only intended one divorce, and swears an oath to that, then he has more right to the woman as long as she is in her waiting period (iddah).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الخلع والطلاق / 15042