Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) says that when the Prophet (peace and blessings be upon him) reached Makkah, he commanded his companions: "Perform the tawaf of the House and of al-Safa and al-Marwah, then have your hair cut and leave the state of ihram." This is for the one who has no sacrificial animal with him; and for whoever has his wife with him, she becomes lawful for him, as do clothes and perfume.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9389