Imam Malik (may Allah have mercy on him) said that it reached him that Sayyiduna Umar bin al-Khattab, Sayyiduna Ali bin Abi Talib and Sayyiduna Abu Hurayrah (may Allah be pleased with them) were asked about a man who had intercourse with his wife while in the state of ihram for Hajj. They said: The two of them should continue as they are until they complete their Hajj, but the following year another Hajj is due from them, and a sacrifice as well. And Sayyiduna Ali bin Abi Talib (may Allah be pleased with him) said: When they make the talbiyah for Hajj the following year, they shall remain apart from each other until they complete their Hajj.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9779