A man on Umrah or Hajj who has intercourse with his wife

A man asked Sa'id bin Jubayr: My wife and I were performing Hajj, and I had intercourse with her before having my hair cut. Sa'id said: Offer a sacrifice (shed blood).

Sayyiduna Ibn Abbas (may Allah be pleased with them both) said regarding a woman whose husband had intercourse with her when she had already shortened her hair but her husband had not had his hair cut: he said that a sacrifice is due from the man.