Nafi' (may Allah have mercy on him) narrates from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both): When a man gives his wife three divorces before consummating the marriage, this woman is not lawful for that man until she marries another man.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الخلع والطلاق / 14968