What is obligatory for one who repents from abandoning prayer and committing forbidden acts?

Question:
May Allah reward you, Honorable Shaykh. This brother Abdullah is asking about his negligence toward Allah the Exalted in abandoning the prayers and falling into some forbidden acts. He says: Now that Allah the Exalted has guided me to repentance and righteous deeds, do I have to make up those prayers? What should I do regarding these forbidden acts? And what righteous deeds expiate them?

Answer:
If these sins are between you and Allah, then repentance and rectifying your deeds for what remains are sufficient, and repentance is sufficient for what has passed, if Allah wills. But if these sins are between you and people, and you have wronged them by taking some of their money or erring against their rights, then you must fulfill their rights to them along with your repentance; you must give them their rights and seek their forgiveness. Yes.