The Sufficient (Vol 6) · Hadith 2403 (#Ḥadīth #9)
Chapter 69 | The Undesirable Case of One’s Sleeping Alone and the Characteristics Prohibited because of its Frightfulness
عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ حَمَّادٍ عَنِ الْحَلَبِيِّ عَنْ أَبِي عَبْدِ اللَّهِ ( عليه السلام ) قَالَ إِنَّ الشَّيْطَانَ أَشَدَّ مَا يَهُمُّ بِالْإِنْسَانِ إِذَا كَانَ وَحْدَهُ فَلَا تَبِيتَنَّ وَحْدَكَ وَ لَا تُسَافِرَنَّ وَحْدَكَ .
9. Ali ibn Ibrahim has narrated from his father from ibn abu ‘ Umayr from Hammad from al-Halabiy who has said the following: “Abu ‘Abd Allah , has said, ‘Satan is the strongest against man when he is alone, thus one must not sleep alone or travel alone.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).