Sahih al-Bukhari 1342
Narrated Anas:
We were in the funeral procession of the daughter of Allah's Messenger (ﷺ) and Allah's Messenger (ﷺ) was sitting 
near the grave and I saw his eyes full of tears. He said, "Is there anyone amongst you who did not 
have sexual relations with his wife last night?" Abu Talha replied in the affirmative. And so Allah's 
Apostle told him to get down in her grave and he got down in her grave and buried her.
حَدَّثَنَا مُحَمَّدُ بْنُ سِنَانٍ، حَدَّثَنَا فُلَيْحُ بْنُ سُلَيْمَانَ، حَدَّثَنَا هِلاَلُ بْنُ عَلِيٍّ، عَنْ أَنَسٍ ـ رضى الله عنه ـ قَالَ شَهِدْنَا بِنْتَ رَسُولِ اللَّهِ صلى الله عليه وسلم وَرَسُولُ اللَّهِ صلى الله عليه وسلم جَالِسٌ عَلَى الْقَبْرِ، فَرَأَيْتُ عَيْنَيْهِ تَدْمَعَانِ فَقَالَ ‏"‏ هَلْ فِيكُمْ مِنْ أَحَدٍ لَمْ يُقَارِفِ اللَّيْلَةَ ‏"‏‏.‏ فَقَالَ أَبُو طَلْحَةَ أَنَا‏.‏ قَالَ ‏"‏ فَانْزِلْ فِي قَبْرِهَا ‏"‏‏.‏ فَنَزَلَ فِي قَبْرِهَا فَقَبَرَهَا‏.‏ قَالَ ابْنُ الْمُبَارَكِ قَالَ فُلَيْحٌ أُرَاهُ يَعْنِي الذَّنْبَ‏.‏ قَالَ أَبُو عَبْدِ اللَّهِ ‏{‏لِيَقْتَرِفُوا‏}‏ أَىْ لِيَكْتَسِبُوا‏.‏