Musnad Ahmad 132:1

Abu Sa’id, the freed slave of Banu Hashim, and Hasan said: Ibn Lahi’ah narrated to us, from Zabban—Hasan said in his narration: Zabban ibn Fa’id narrated to us—from Sahl ibn Mu’adh, from his father, that the Prophet, peace and blessings of Allah be upon him, said: "Whoever steps over the Muslims on the day of Friday, he has taken a bridge to Hell."