Sahih Muslim · Hadith 7669
The Book Pertaining to Piety and Softening of Hearts - كتاب الزهد والرقائق
وحدثنا إسحاق بن إبراهيم، حدثنا الملائي، حدثنا سفيان، بهذا الإسناد وزاد ولم أسمع أحدا غيره يقول قال رسول الله صلى الله عليه وسلم .
Sufyan reported this hadith with the same chain of transmitters and he made this addition: " I did not hear anyone saying besides him that it was Allah's Messenger (may peace be upon him) who had said so."
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).