251. Amīr al-mu’minīn, peace be upon him, said: The sourness of this world is the sweetness of the next world while the sweetness of this world is the sourness of the next one.
Nahj al-Balāgha #2051463. Amīr al-mu’minīn, peace be upon him, said: This world has been created for other than itself and has not been created for itself.