"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."  

أَنَّ نَبِيَّ اللَّهِ ﷺ قَالَ لاَ يَبُولَنَّ أَحَدُكُمْ فِي جُحْرٍ قَالُوا لِقَتَادَةَ وَمَا يُكْرَهُ مِنَ الْبَوْلِ فِي الْجُحْرِ قَالَ يُقَالُ إِنَّهَا مَسَاكِنُ الْجِنِّ