Ibn 'Umar was asked: How many times did the Messenger of Allah ﷺ perform 'Umrah ? He said: Twice. 'Aishah said: Ibn 'Umar knew that the Messenger of Allah ﷺ performed three 'Umrahs in addition to the one he combined with the Farewell Pilgrimage. (Using translation from Abū Dāʾūd 1992)
أَنَّ ابْنَ عُمَرَ سُئِلَ كَمِ اعْتَمَرَ رَسُولُ اللهِ ﷺ؟ قَالَ مَرَّتَيْنِ قَالَتْ عَائِشَةُ لَقَدْ عَلِمَ ابْنُ عُمَرَ أَنَّ رَسُولَ اللهِ ﷺ «قَدِ اعْتَمَرَ ثَلَاثًا سِوَى الْعُمْرَةِ الَّتِي قَرَنَهَا بِحَجَّةِ الْوَدَاعِ»