The Sufficient (Vol 1) · Hadith 458 (#Ḥadīth #2)
Chapter 6 | The Issue that even if only two people would remain on earth one of them would certainly be the Imam, the person with divine authority
2ـ أَحْمَدُ بْنُ إِدْرِيسَ وَمُحَمَّدُ بْنُ يَحْيَى جَمِيعاً عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ مُحَمَّدِ بْنِ عِيسَى بْنِ عُبَيْدٍ عَنْ مُحَمَّدِ بْنِ سِنَانٍ عَنْ حَمْزَةَ بْنِ الطَّيَّارِ عَنْ أَبِي عَبْدِ الله قَالَ لَوْ بَقِيَ اثْنَانِ لَكَانَ أَحَدُهُمَا الْحُجَّةَ عَلَى صَاحِبِهِ. مُحَمَّدُ بْنُ الْحَسَنِ عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ مُحَمَّدِ بْنِ عِيسَى مِثْلَهُ.
2. Ahmad ibn Idris and Muhammad ibn Yahya together have narrated from Ahmad ibn Muhammad from Muhammad ibn ‘Isa from abu ‘Ubayd from Muhammad ibn Sinan from abu Hamza ibn al-Tayyar from abu ‘Abdallah who has said the following. “Would there remain only two people on earth, one of them would the person with divine authority over the other.” Muhammad ibn al-Hassan has narrated from Sahl ibn Ziyad from Muhammad ibn ‘Isa a similar Hadith.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).