عَنْ أَبِي هُرَيْرَةَ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسلم قَالَ:" يَعْقِدُ الشَّيْطَانُ عَلَى قَافِيَةِ رَأْسِ أَحَدِكُمْ إِذَا هُوَ نَامَ ثَلَاثَ عُقَدٍ يَضْرِبُ عَلَى كُلِّ عُقْدَةٍ: عَلَيْكَ لَيْلٌ طَوِيلٌ فَارْقُدْ. فَإِنِ اسْتَيْقَظَ فَذَكَرَ اللَّهَ انْحَلَّتْ عُقْدَةٌ فَإِنْ تَوَضَّأَ انْحَلَّتْ عُقْدَةٌ فَإِنْ صَلَّى انْحَلَّتْ عُقْدَةٌ فَأَصْبَحَ نَشِيطًا طيب النَّفس وَإِلَّا أصبح خَبِيث النَّفس كسلانا "

Ibn Mas'ud said that a man was mentioned in the Prophet’s presence, and he was told that he continued sleeping till morning, never having got up to pray. He said, “That is a man in whose ear (or, in whose ears) the devil has urinated.” (Bukhari and Muslim.)