7. Ali ibn Ibrahim has narrated from his father from al-Nawfali from al-Sakuni from Abu ‘Abdillah عليه السلام who has said the following: “Abu ‘Abd Allah عليه السلام has said, ‘It is ignorance to laugh without astonishment.’ The narrator has said that the Imam would say, ‘In laughing do not allow your teeth to become visible, when you have committed disgraceful deeds. One who has committed evil deeds should not feel secure about what kinds of misfortune the night may bring.”’