Sayyiduna Sa'b bin Jaththamah (may Allah be pleased with him) said: The Prophet (peace and blessings be upon him) passed by me while I was at al-Abwa', so I gave him (peace and blessings be upon him) a wild donkey as a gift. He (peace and blessings be upon him) returned it to me, and when he (peace and blessings be upon him) saw displeasure in my face, he said: "We did not return it to you out of disregard for you; rather, we are in the state of ihram."
Hadith Referenceالمعجم الكبير للطبراني / باب الصاد / 7413