Sahih al-Bukhari 1819
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "Whoever performs Hajj to this House (Ka`ba) 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).
حَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ، حَدَّثَنَا شُعْبَةُ، عَنْ مَنْصُورٍ، عَنْ أَبِي حَازِمٍ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏
"‏ مَنْ حَجَّ هَذَا الْبَيْتَ، فَلَمْ يَرْفُثْ وَلَمْ يَفْسُقْ، رَجَعَ كَمَا وَلَدَتْهُ أُمُّهُ ‏"‏‏.‏