Musnad Abu Ya'la al-Mawsili 152:259

Abu Khaythama narrated to us, Muhammad ibn Abdullah al-Asadi narrated to us, Sufyan narrated to us, from Abu Ishaq, from al-Aswad, from Abdullah, from the Prophet (may Allah bless him and grant him peace): That he used to recite: "Fahal min muddakir" (Is there any that will receive admonition?).