A man came to Al-Hasan Al-Basri and said:

“I heard you say that if you commit sins, then Allah prevents you from things. I do all the sins that you can think of and don’t do many good deeds. I have a beautiful wife and beautiful kids and a lot of money and land and I am successful. Allah did not prevent me from anything. How is it that you say that because of sins Allah prevents you?”

He said:

“Do you pray Qiyam’l-Layl? Do you enjoy your du'aa? Do you enjoy your ṣalat? That is enough prevention that He prevented you from communicating with Him.”