1010 - Abu Bakr al-Marrudhi, 'Abd al-Malik al-Maymuni, Abu Dawud al-Sijistani, Harb ibn Isma'il al-Kirmani, Yusuf ibn Musa, Muhammad ibn Ahmad ibn Wasil, and al-Hasan ibn Muhammad all informed us, saying that they heard Ahmad ibn Hanbal say: "Faith is speech and action; it increases and decreases."