When he reached his final circuit at Marwa, he said, "Had I known beforehand what I now realize, I would not have brought the sacrificial animals, and I would have made it an Umra. So whoever among you has not brought a sacrificial animal should exit the state of ihram and make it an Umra."So all the people exited ihram and shortened their hair, except for the Prophet ﷺ and those who had brought sacrificial animals with them.
… حتى إذا كان آخر طوافه على المروة فقال: لو أني استقبلت من أمري ما استدبرت لم أسق الهدي وجعلتها عمرة، فمن كان منكم ليس معه هدي فليحل وليجعلها عمرة… قال فحل الناس كلهم وقصروا إلا النبي ﷺ ومن كان معه هدي.