Hadith 2789
Sayyidah Aisha (may Allah be pleased with her) narrates that the Messenger of Allah (peace and blessings be upon him) said: "Whoever has a sacrificial animal with him should enter into the state of Ihram for both Hajj and Umrah, and then he should not exit from Ihram after Umrah until (on the 10th of Dhul-Hijjah) he exits from the Ihram of both Hajj and Umrah together."
Hadith 2790
Lady Aisha (may Allah be pleased with her) narrates that we set out with the Messenger of Allah (peace be upon him) for Hajj, and we assumed three types of Ihram. Some among us assumed Ihram for both Hajj and Umrah together. Some of us assumed Ihram only for Hajj, and some assumed Ihram only for Umrah. So, whoever assumed Ihram for both Hajj and Umrah was not free from any restriction imposed by Ihram until he had performed the rites of Hajj. And whoever assumed Ihram for Umrah, he became free after performing Tawaf of the Sacred House and Sa’i between Safa and Marwah, until he assumed Ihram for Hajj (on the 8th of Dhul-Hijjah).