Sayyiduna Abu Hurayrah (may Allah be pleased with him) says: I asked Sayyiduna Umar (may Allah be pleased with him) about a man from the people of Bahrain who had given his wife one or two divorces; the woman then married another husband, who died or divorced her. Then she returned to her first husband: how many divorces remain for him? He said: As many divorces as were left the first time, those remain.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الخلع والطلاق / 15135