What a Person Should Say When They Lie Down to Sleep
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 64
وَ رَوَى سَعْدٌ اَلْإِسْكَافُ عَنْ أَبِي جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ أَنَّهُ قَالَ: «مَنْ قَالَ هَذِهِ اَلْكَلِمَاتِ فَأَنَا ضَامِنٌ أَنْ لاَ يُصِيبَهُ عَقْرَبٌ وَ لاَ هَامَّةٌ حَتَّى يُصْبِحَ: أَعُوذُ بِكَلِمَاتِ اَللَّهِ اَلتَّامَّاتِ اَلَّتِي لاَ يُجَاوِزُهُنَّ بَرٌّ وَ لاَ فَاجِرٌ مِنْ شَرِّ مَا ذَرَأَ وَ مِنْ شَرِّ مَا بَرَأَ وَ مِنْ شَرِّ كُلِّ دَابَّةٍ «هُوَ آخِذٌ بِنٰاصِيَتِهٰا إِنَّ رَبِّي عَلىٰ صِرٰاطٍ مُسْتَقِيمٍ».
Sa'd al-Iskaf reported from Imam Muhammad ibn Ali Al-Baqir عليه السلام that He said: "Whoever recites these words, I guarantee that no scorpion or harmful creature will harm them until morning: 'I seek refuge with the complete words of Allah سبحانه وتعالى, which neither the righteous nor the wicked can surpass, from the evil of what He created, from the evil of what He brought forth, and from the evil of every creature over which He holds control. Truly, my Lord عز وجل is on a straight path.'"
- Ṣaḥīḥ al-Faqīh