In sitting with him, he said: Ibn Abi Al-Dunya told us, he said: I heard Muhammad bin Al-Hussein say: A wise man said to a wise man: Advise me, so he said: Make God your concern and make sadness equal to the extent of your sin. How many sad people have had their sadness stop at the happiness of eternity, and how many happy people have been transported by their joy to the length of misery.