Messenger of Allah ﷺ said, "(The performance of) ʿUmra is an expiation for the sins committed (between it and the previous one). And the reward of Hajj Mabrur (the one accepted by Allah) is nothing except Paradise."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ الْعُمْرَةُ إِلَى الْعُمْرَةِ كَفَّارَةٌ لِمَا بَيْنَهُمَا وَالْحَجُّ الْمَبْرُورُ لَيْسَ لَهُ جَزَاءٌ إِلاَّ الْجَنَّةُ  

Messenger of Allah ﷺ said, "Whoever performs Hajj to this House (Kaʿba) and does not approach his wife for sexual relations nor commits sins (while performing Hajj), he will come out as sinless as a newlyborn child. (Just delivered by his mother).  

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ حَجَّ هَذَا الْبَيْتَ فَلَمْ يَرْفُثْ وَلَمْ يَفْسُقْ رَجَعَ كَمَا وَلَدَتْهُ أُمُّهُ