Sahih al-Bukhari 1819
Sahih al-Bukhari · Book 27: Pilgrims Prevented from Completing the Pilgrimage · The Statement of Allah تعالى: "...Then he should not have sexual relations (with his wife) ..." (V.2:197)
Narrated Abu Huraira:
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 " .
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).