Don’t curse him. How do you know he hasn’t asked Allaah to forgive him, and He has [since] forgiven him.
Indeed, you are unable to please all of the people, so rectify that which is between you and Allaah, and do not concern yourself with [what] the people [may think or say].
When Ibn Qudaamah would hear of any evil [taking place], he would strive to prevent it from happening again.
If you are unable to establish the [voluntary] night prayer, nor [voluntarily] fast during the day, then know that you have been prevented [from doing these great acts of worship], because you have been shackled by your sins.
From the greatest of catastrophes for a man is that he knows his own shortcomings, but is not concerned, nor does he grieve over them.