Sunan ad-Darimi

Masruq said to Sayyida Aisha (may Allah be pleased with her): O Mother of the Believers! Some people who are going to Makkah send a sacrificial animal with someone and instruct him that when you reach such-and-such place, put a collar around its neck (so that it is known to be a hady), then when the person going to Makkah reaches that place (according to estimation), from that time the sender remains in the state of ihram until the people (after the sacrifice) come out of ihram? I heard the sound of her hands clapping from behind the curtain, she said: Collars (necklaces) were braided for the hady of the Messenger of Allah (peace and blessings be upon him) and he (peace and blessings be upon him) would send those hady (sacrificial animals) towards the Ka'bah, then he (peace and blessings be upon him) would not avoid his wife in the way that a person in ihram does, until the people would even return.

Urwah bin Zubair and Amrah bint Abdur Rahman said that Lady Aisha (may Allah be pleased with her) said: I used to braid necklaces (collars) for the sacrificial animals of the Messenger of Allah (peace and blessings be upon him), then he (peace be upon him) would send his sacrificial animals adorned with these necklaces, while he himself remained in Medina, and he would not abstain from anything until the sacrifice was done. (That is, unlike a pilgrim in the state of Ihram, the Prophet (peace be upon him) would not avoid anything.)