The Book of Divine Unity · Hadith 82 (#Ḥadīth #7)
Chapter 4 | The Commentary of Chapter 112 the Unity [al-Tawhid]
7 - حدثنا أبي رحمه الله، قال: حدثني سعد بن عبد الله، قال: حدثنا محمد ابن عيسى بن عبيد، عن يونس بن عبد الرحمن، عن الربيع بن مسلم، قال: سمعت أبا الحسن عليه السلام وسئل عن الصمد فقال: الصمد الذي لا جوف له.
7. My Father said: Sa`d ibn `Abd Allah related to me that Muhammad ibn `Isa ibn `Ubayd, on the authority of Yunus ibn `Abd al-Rahman, on the authority of al-Rabi` ibn Muslim that When asked about the Needless [al-Samad], I heard Abu al-Hasan al-Kadhim reply: “The Needless is He who has no interior.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).