The Messenger of Allah ﷺ said, "Every prophet has a prayer that is answered, and I have saved my prayer as intercession for my nation. It will reach, if Allah wills, anyone among them who dies without associating anything with Allah."
حدثنا أبو كريب حدثنا أبو معاوية عن الأعمش عن أبي صالح
قال رسول الله ﷺ لكل نبي دعوة مستجابة وإني اختبأت دعوتي شفاعة لأمتي وهي نائلة إن شاء الله من مات منهم لا يشرك بالله شيئا
Muslim also narrated it, Book of Faith, Chapter on the Prophet's ﷺ Reserving the Prayer of Intercession for His Nation, hadith 199, from Kurayb through the same chain, and Bukhari narrated it, hadith 6304, from the hadith of Abu Hurairah.