The Book of Divine Unity · Hadith 372 (#Ḥadīth #3)
Chapter 53 | Allah made the Nature of the Creation upon Divine Unity
3 - حدثنا محمد بن موسى بن المتوكل رحمه الله، قال: حدثنا علي بن إبراهيم قال: حدثنا محمد بن عيسى بن عبيد، عن يونس بن عبد الرحمن، عن عبد الله بن سنان عن أبي عبد الله عليه السلام قال: سألته عن قول الله عز وجل: (فطرة الله التي فطر الناس عليها) ما تلك الفطرة؟ قال: هي الإسلام، فطرهم الله حين أخذ ميثاقهم على التوحيد فقال: (ألست بربكم) وفيه المؤمن والكافر .
3. Muhammad ibn Musa ibn al-Mutawakkil said: `Ali ibn Ibrahim said: Muhammad ibn `Isa ibn `Ubayd said, on the authority of Yunus ibn `Abd al-Rahman, on the authority of `Abd Allah ibn Sinan that I asked Abu `Abd Allah al-Sadiq “What is the nature referred to in the Word of Allah, the Mighty and High: “The nature made by Allah is which He has made men.” He responded, It is Islam. Allah placed this nature in them when He created them and made a covenant with them regarding Divine Unity. Thus, He asked: Am I not your Lord? The covenant encompassed all those who believe and all those who disbelieve.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).