Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) said that Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) addressed the people at Arafah and told them the rites of Hajj, and among the things he said was: In the morning, in sha' Allah (if Allah wills), you will depart from Jam'. Whoever then stones al-Jamrah al-Qaswa, which is by al-Aqabah, with seven pebbles, then goes and slaughters a sacrifice if he has one, then shaves his head or shortens his hair, everything that was forbidden to him because of Hajj becomes lawful for him except women and perfume; so let no one touch perfume or women until he has performed tawaf of the House.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9590