What is the Expiation for the Sin of Zina?

Question:

What is the expiation (kaffarah) for the sin of zina (adultery)?

Answer:

Repentance—a sincere repentance to Allah that wipes out what came before it. He should repent to Allah, conceal himself, and make a sincere repentance to Allah, and Allah accepts the repentance of whoever repents, yes.