It was said to Al-Hasan Al-Basri (rahimahullaah):

“Indeed, such and such person does not admonish anyone and he says, ‘I am afraid of saying something that I do not do.'”

Al-Hasan said: ”So when will he do what he says? Shaytaan desires to overcome this person, so that he neither enjoin good upon anyone nor forbid anyone from evil.”

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[Tafseer At-Tabari. 1/367]