{ And those from among your women who approach distasteful acts – seek four witnesses against them, and if they testify, restrain the women to their houses until death takes them or Allah makes a way for them. And for two men among you who do this, harm them both, and if they repent and get right, leave them be. Indeed Allah is readily turned towards you and merciful } Al-Nisaa 15-16

The ruling in the beginning of Islam was that a woman, if she adulterated, and her adultery was substantiated with impartial proof, she was confined to a house without possibility of leaving, until she died … Ibn ‘Abbas said: This was the ruling until Allah sent down surah Al-nur and thereby abrogated it with whipping or stoning.
And His word { And for two men among you who do this, harm them both } ; in other words, with two men who have committed distasteful acts, harm them both. Ibn ‘Abbas, Sa’id ibn Jubair, and others have said: Meaning by insults, humiliation, and beating with sandals; and this was the ruling until Allah abrogated it with whipping or stoning.