The Time for Night Prayer
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 66
وَ رَوَى اَلْعَلاَءُ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ عَنْ أَحَدِهِمَا عَلَيْهِمَا اَلسَّلاَمُ قَالَ: «لَيْسَ مِنْ عَبْدٍ إِلاَّ وَ هُوَ يُوقَظُ فِي لَيْلَتِهِ مَرَّةً أَوْ مَرَّتَيْنِ فَإِنْ قَامَ كَانَ ذَلِكَ وَ إِلاَّ جَاءَ اَلشَّيْطَانُ فَبَالَ فِي أُذُنِهِ أَ وَ لاَ يَرَى أَحَدُكُمْ أَنَّهُ إِذَا قَامَ وَ لَمْ يَكُنْ ذَلِكَ مِنْهُ قَامَ وَ هُوَ مُتَخَثِّرٌ ثَقِيلٌ كَسْلاَنُ.
Al-'Ala' reported from Muhammad ibn Muslim from one of the Imams عليه السلام who said: "There is no servant except that they are awakened during the night once or twice. If they rise (for prayer), it will be for their benefit; otherwise, Shaytan comes and urinates in their ear. Do you not see that when one rises and has not risen for prayer, they do so sluggishly and heavily, feeling lazy?"
- Ṣaḥīḥ al-Faqīh