Doubt in the Validity of Repentance

Question:
What is the ruling regarding a person who was disobedient to Allah, but then returned to Him, prays, and performs some good deeds such as charity, keeping the company of the righteous, and attending such lectures, but he has doubts about his repentance because he is not confident that he will stay away from sins? Is he considered a repentant person or one who is delaying repentance?

Answer:
These are whispers (waswas) that one should not pay attention to. He should repent to Allah, turn to obedience, leave sins, and leave the whispers of Satan. He says, "Your repentance is not valid," and he does not leave these matters. He should not pay attention to it. He should resolve, resolve to repent, leave sins, and turn to the obedience of Allah the Exalted and Majestic. He should be given good news, if Allah wills. Allah accepts the repentance of whoever repents. He should not despair, not lose hope, and not doubt. Yes.