Musnad Ahmad 33:581

Mu'awiyah ibn 'Amr narrated to us, Abu Ishaq narrated to us, from al-Awza'i, Abu 'Ammar narrated to me, a neighbor of Jabir ibn 'Abdullah narrated to me, he said: I arrived from a journey, and Jabir ibn 'Abdullah came to me to greet me. I began to tell him about the division of the people and what they had introduced [of innovations]. Jabir began to weep, then he said: I heard the Messenger of Allah, peace and blessings of Allah be upon him, say: "Indeed, the people entered into the religion of Allah in multitudes, and they will exit from it in multitudes."