The Messenger of Allah ﷺ said, "The Jews split into seventy-one sects, one in Paradise and seventy in the Fire. The Christians split into seventy-two sects, seventy-one in the Fire and one in Paradise. By the One in whose hand is the soul of Muhammad, my nation will split into seventy-three sects, one in Paradise and seventy-two in the Fire."Someone asked, "Messenger of Allah, who are they?"He answered, "The main body."
قال رسول الله ﷺ: افترقت اليهود على إحدى وسبعين فرقة فواحدة في الجنة، وسبعون في النار، وافترقت النصارى على ثنتين وسبعين فرقة، فإحدى وسبعون في النار، وواحدة في الجنة، والذي نفس محمد بيده لتفترقن أمتي على ثلاث وسبعين فرقة، واحدة في الجنة وثنتان وسبعون في النار. قيل: يا رسول الله من هم؟ قال: الجماعة.
Ibn Majah (3992), Ibn Abu Asim in Sunnah (63), and Lalikai in Sharh Usul Itiqad Ahl al-Sunnah (149) all narrated it through routes back to Abbad bin Yusuf Kindi Himsi, who said, Safwan bin Amr narrated to us, from Rashid bin Saad, from Awf bin Malik, and he related it.Its chain of transmission is hasan because of Rashid bin Saad, and likewise Abbad bin Yusuf Kindi, whom his student Ibrahim bin Ala Zubaydi Himsi deemed trustworthy.