It was narrated that Aishah said: "We went out with the Messenger of Allah not thinking of anything but Hajj. When we drew close to Makkah, the Messenger of Allah ordered: “Whoever has a Hadi with him should remain in Ihram, and whoever does not have a Hadi with him, he should exit Ihram”"
SahihSahihHasanBook 24 · Hadith 186