The Book of Purification
1/30. Chapter:
That It Is Disliked To Urinate Into A Burrow In The Ground
Sunan an-Nasai
أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعِيدٍ، قَالَ أَنْبَأَنَا مُعَاذُ بْنُ هِشَامٍ، قَالَ حَدَّثَنِي أَبِي، عَنْ قَتَادَةَ، عَنْ عَبْدِ اللَّهِ بْنِ سَرْجِسَ، أَنَّ نَبِيَّ اللَّهِ صلى الله عليه وسلم قَالَ " لاَ يَبُولَنَّ أَحَدُكُمْ فِي جُحْرٍ " . قَالُوا لِقَتَادَةَ وَمَا يُكْرَهُ مِنَ الْبَوْلِ فِي الْجُحْرِ قَالَ يُقَالُ إِنَّهَا مَسَاكِنُ الْجِنِّ .
It was narrated from Qatadah, from 'Abdullah bin Sarjis, that the Prophet of Allah (ﷺ) said: "None of you should urinate into a burrow in the ground." They said to Qatadah: "Why is it disliked to urinate into a burrow in the ground?" He said: "It is said that these are dwelling-places of the jinn."
Reference : Sunan an-Nasa'i 34In-book reference : Book 1, Hadith 34English translation : Vol. 1, Book 1, Hadith 34