It is narrated about Hasan that he used to say: The heart of a believer is behind his tongue. So when any of you intends to do something, he should reflect upon it. If it is a matter of goodness, then he should speak about it, and if it is otherwise, then he should remain silent. And the heart of a hypocrite is at the edge of his tongue. So when he intends something, he speaks it out and makes it apparent.

It is narrated from Hasan that he says: Indeed, a believer thinks well of his Lord, so he also does good deeds, and a hypocrite thinks ill of his Lord, so he also does bad deeds.

It is narrated from Hasan that he said: Seek knowledge in such a way that it does not harm worship. And seek worship in such a way that it does not harm knowledge. Because whoever acts without knowledge does more wrong than right.

It is narrated from Yunus that he says Hasan was a sorrowful man.

It is narrated from Hasan, he says: Indeed, I have found such people who, among their deeds, would keep secret the ones they wished to keep secret.

It is narrated from Hasan that he says: Indeed, when a person performs a good deed, it becomes light in his heart and strength in his body. And indeed, when a person commits a sin, it becomes darkness in his heart and weakness in his body.

It is narrated from Hasan, he says that when the noble companions of the Messenger of Allah (peace be upon him) met each other, one man would say to his companion, "Have you received the news that you will enter (it)?" He would reply, "Yes." Then the first would ask, "Have you also received the news that you will exit from it?" He would reply, "No." Upon this, the first would say, "Then for what reason are you laughing?"

Hazrat Dawood, a companion of Hasan Basri, says that Hasan said: By God! There is no servant for whom daily sustenance has not been apportioned. But he does not know what has been made better for him. Except the weak and less intelligent.

It is narrated from Hasan that he said: By God! These are not the worst days for a believer. These are the days in which his respite is brought near for him, in which he remembers something forgotten from his return (to God), and in which his sins are forgiven.

It is narrated from Hasan that he said: I have not seen anyone who returns more than the reciter returns.