1. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Ali ibn al-Hakam from ‘Abd al-Malik ibn ‘Utbah who has said the following: “Once I asked abu al-Hassan عليه السلام about the papers that accumulate if they can be burned in which names of Allah may also be found. The Imam said, ‘No, they must not be burned instead, first they should be washed with water.’”