Abu Bakr narrated to us, saying: Muḥammad ibn al-Ḥusayn said: Al-Qāsim ibn Muḥammad ibn Jaʿfar would often recite:

(long metre)
Perhaps what you are now witnessing will not endure, and you will yet behold
a way out from the burden that the passing of time has imposed.
Perhaps Allah will bring a deliverance, for
every day He is engaged in a new affair with His creation.
When hardship shows its face, anticipate ease, for
Allah has decreed that hardship is ever followed by ease.