I was with a group of people in Iliya when one of them said, "I heard the Messenger of Allah ﷺ say, 'More people than the tribe of Banu Tamim will enter Paradise through the intercession of a man from my nation.'"Someone asked, "Messenger of Allah, other than yourself?"He replied, "Other than myself."When the man stood up, I asked, "Who is this?"They said, "This is Ibn Ubayy al-Judaa."
حدثنا أبو كريب حدثنا إسمعيل بن إبراهيم عن خالد الحذاء
كنت مع رهط بإيلياء فقال رجل منهم سمعت رسول الله ﷺ يقول يدخل الجنة بشفاعة رجل من أمتي أكثر من بني تميم قيل يا رسول الله سواك قال سواي فلما قام قلت من هذا قالوا هذا ابن أبي الجذعاء
[Its chain of transmission is sahih] Ibn Majah narrated it in Zuhd, chapter on the mention of intercession, no. 4316, through Khalid Haddan with this wording. Ibn Hibban graded it sahih, no. 2598, as did Hakim, 1/70, 71, 3/408, and Dhahabi agreed with him.