"The Messenger of Allah performed Qaran for Hajj and Umrah, so he performed one Tawaf for both of them."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَرَنَ الْحَجَّ وَالْعُمْرَةَ فَطَافَ لَهُمَا طَوَافًا وَاحِدًا قَالَ وَفِي الْبَابِ عَنِ ابْنِ عُمَرَ وَابْنِ عَبَّاسٍ  

The Messenger of Allah said: "Whoever assumes Ihram for Hajj and Umrah, then it is acceptable for him to perform one Tawaf and one Sa'I for them both, until he exits Ihram for both of them together."  

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ أَحْرَمَ بِالْحَجِّ وَالْعُمْرَةِ أَجْزَأَهُ طَوَافٌ وَاحِدٌ وَسَعْىٌ وَاحِدٌ عَنْهُمَا حَتَّى يَحِلَّ مِنْهُمَا جَمِيعًا