The Sufficient (Vol 2) · Hadith 1477 (#Ḥadīth #2)
Chapter 184 | Confusion of the Heart
2ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنِ الْعَبَّاسِ بْنِ مَعْرُوفٍ عَنْ حَمَّادِ بْنِ عِيسَى عَنِ الْحُسَيْنِ بْنِ الْمُخْتَارِ عَنْ أَبِي بَصِيرٍ قَالَ سَمِعْتُ أَبَا جَعْفَرٍ (عَلَيهِ السَّلام) يَقُولُ يَكُونُ الْقَلْبُ مَا فِيهِ إِيمَانٌ وَلا كُفْرٌ شِبْهَ الْمُضْغَةِ أَ مَا يَجِدُ أَحَدُكُمْ ذَلِكَ.
2. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from al- ‘Abbas ibn Ma’ruf from Hammad ibn ‘Isa from al-Husayn ibn al-Mukhtar from abu Basir who has said the following: “I heard abu Ja’far saying, ‘There is the heart in which there is no belief or disbelief, like a chunk of flesh. Does any one of you feel it is as such sometimes?’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).