Musnad Abu Ya'la al-Mawsili 219:18

Ahmad ibn Ibrahim narrated to us, Abu Abd al-Rahman narrated to us, Muhammad ibn Abd Allah al-Shu'aythi Abu Abd Allah narrated to us, from his father, from 'Anbasah ibn Abi Sufyan, from his sister, Umm Habibah, the wife of the Prophet (may Allah bless him and grant him peace), who said: "Whoever prays four rak'ahs before the Dhuhr prayer and four after it, Allah the Almighty and Majestic will forbid him to the Fire."