Sahih Muslim · Hadith 7369
The Book Pertaining to Paradise; Its Description; Its Bounties and Its Intimates - كتاب الجنة وصفة نعيمها وأهلها
حدثني سويد بن سعيد، حدثني حفص بن ميسرة، عن العلاء بن عبد الرحمن، عن أبيه، عن أبي هريرة، أن رسول الله صلى الله عليه وسلم قال " رب أشعث مدفوع بالأبواب لو أقسم على الله لأبره " .
Abu Huraira reported Allah's Messenger (may peace be upon him) as say- ing: Many a people with dishevelled hair are driven away from the door (but they are so pious) that if they are to swear in the name of Allah, He would definitely fulfil that.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).