I asked Anas, "How many times did the Messenger of Allah ﷺ perform Umrah?"He replied, "Four times. His Umrah which the polytheists prevented him from completing in Dhul-Qadah, his Umrah the following year in Dhul-Qadah, his Umrah when he distributed the spoils of Hunayn from Jiranah in Dhul-Qadah, and his Umrah performed together with his Hajj."
حدثنا عفان حدثنا همام
سألت أنسا كم اعتمر رسول الله ﷺ قال أربعا عمرته التي صده عنها المشركون في ذي القعدة وعمرته أيضا في العام المقبل في ذي القعدة وعمرته حين قسم غنيمة حنين من الجعرانة في ذي القعدة وعمرته مع حجته
Its isnad is sahih. It is found in Bukhari 7/439 no. 4148 in Fath, in the Book of Military Expeditions, the Expedition of Hudaybiya, and in Muslim 2/916 no. 1253 in the Book of Hajj, on the number of times the Prophet ﷺ performed umrah.