الكافي 2/1/47/6

6. A number of our people have narrated from Ahmad ibn Muhammad ibn Khalid from his father from Ali ibn al-Nu’man from ‘Abd Allah ibn Muskan from abu Basir who has said the following: “I heard Abu ‘Abdillah عليه السلام saying, ‘A free person is free in all conditions. Even if hardships strike him he exercises patience, if afflictions batter him he does not break down even if he is taken as a captive and is overpowered and his comfort and prosperity are changed into poverty and hardships, just as in the case of Yusuf (Joseph) the truthful and trustworthy one (may Allah grant him blessings), whose freedom remained unaffected even though he was enslaved, taken as a captive and overpowered. The darkness and loneliness of the well did not harm him, nor did all that he went through until Allah granted him favors. He made the insolent tyrant into a slave for him after his being his king. He set him free and made a whole nation to be kind to him. This is how patience yields goodness. You must exercise patience and settle your soul upon patience and you will, certainly, be rewarded.’”