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Sa'id ibn Jubayr said: I said to Abdullah ibn Abbas: AbulAbbas, I am surprised to see the difference of opinion amongst the companions of the Messenger (ﷺ) about the wearing of ihram by the Messenger of Allah (ﷺ) when he made it obligatory.

Anas said The Prophet(ﷺ) passed the night at Dhu al Hulaifah till the morning came. He then rode (on his she Camel) which stood up with him on her back. When he reached al Baida, he praied Allaah, glorified Him and expressed His greatness.

I am the most knowledgeable of the people regarding this. The Messenger of Allah (ﷺ) only did Hajj once, and this is why they differed: the Messenger of Allah (ﷺ) set out for Hajj, and when he had prayed two rak'ahs in his mosque in Dhul-Hu