Abdullah bin Haneen says that once I was at the place of Abwa with Hazrat Ibn Abbas and Miswar (may Allah be pleased with them). We were talking when the topic of cooling oneself while in the state of Ihram came up. Hazrat Miswar (may Allah be pleased with him) denied its permissibility, while Hazrat Ibn Abbas (may Allah be pleased with him) allowed it. Then Hazrat Ibn Abbas (may Allah be pleased with him) sent me to Hazrat Abu Ayyub (may Allah be pleased with him) with this message: "Your nephew Abdullah bin Abbas sends you greetings and asks how the Prophet Muhammad (peace be upon him) used to wash his head while in the state of Ihram?" Abdullah bin Haneen reached there and found Hazrat Abu Ayyub (may Allah be pleased with him) bathing with a cloth curtain hanging between the two sides of a well. When I asked him for clarification, he wrapped a cloth around his chest and put his face out. I saw that a man was pouring water over his head. Hazrat Abu Ayyub (may Allah be pleased with him) indicated with his hands over his entire head and moved his hands forward and backward. Upon learning this, Hazrat Miswar (may Allah be pleased with him) said to Hazrat Ibn Abbas (may Allah be pleased with him), "From now on, I will never differ with you."