What is your advice for a student of knowledge who has committed a sin, repented from it, but has experienced a decline in his pursuit of knowledge and his daily recitation?

Question:
He says: Honorable Shaykh, may Allah grant you success, what is your guidance for a student of knowledge who committed a sin, then repented from it, but has experienced a decline in his pursuit of knowledge and in his daily recitation of the Qur'an? He fears for himself that he may fall into despair and hopelessness, so he asks you to make du'a for him, and what is your advice and guidance for him?

Answer:
He should repent to Allah with sincere resolve, abandon laziness, and whoever repents in this manner, Allah does not let him surrender to laziness, nor does despair take hold of him, nor does Shaytan come to him and make him despair. He must resolve to repent and be diligent in his deeds, and may Allah the Exalted grant him success. Yes.