A Sinner Asked His Shaikh…

Imām Ibn Taimiyyah, may Allāh have mercy on him, said:

One of them said to his shaikh, “Indeed, I sin.”
He said, “Repent.”
He said, “Then I go back [to it].”
He said, “Repent.”
He said, “Then I go back [to it].”
He said, “Repent.”
He said, “Until when [do I keep repenting?]”
He said, “Until you upset the devil.”

Majmūʿ Al-Fatāwá, vol. 7, p. 492.