The Sufficient (Vol 1) · Hadith 720 (#Ḥadīth #2)
Chapter 57 | The Time When the Imam Learns the Knowledge of the Imam before him
2ـ مُحَمَّدٌ عَنْ مُحَمَّدِ بْنِ الْحُسَيْنِ عَنْ عَلِيِّ بْنِ أَسْبَاطٍ عَنِ الْحَكَمِ بْنِ مِسْكِينٍ عَنْ عُبَيْدِ بْنِ زُرَارَةَ وَجَمَاعَةٍ مَعَهُ قَالُوا سَمِعْنَا أَبَا عَبْدِ الله يَقُولُ يَعْرِفُ الَّذِي بَعْدَ الامَامِ عِلْمَ مَنْ كَانَ قَبْلَهُ فِي آخِرِ دَقِيقَةٍ تَبْقَى مِنْ رُوحِهِ.
2. Muhammad has narrated from Muhammad ibn al-Husayn from Ali ibn Asbat from al-Hakam ibn Miskin from ‘Ubayd ibn Zurarah and a group with him who has said the following. “We heard abu ‘Abdallah say, ‘The succeeding Imam comes to know of the knowledge of the preceding Imam in the last minute of the time left from his life.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).