“Learn from me. Allah (SWT) has ordained for them (women) another way. (If) a virgin (commits illegal sexual intercourse) with a virgin, (the punishment is) one hundred lashes and exile for one year. (If) a Thayyib (commits adultery) with a Thayyib (the punishment is) one hundred lashes and stoning.”
Sunan Ibn Majah Book 20, Hadith 18
← Previous Hadith “We were with the Messenger of Allah (ﷺ) and a man came to him and said: 'I adjure you by Allah (SWT) to judge between us according to the Book of Allah (SWT).' His opponent, who was more knowledgeable than him, said: 'Judge between us according to the Book of Allah (SWT), but let me speak first.' He said: 'Speak.' He said: 'My son was a servant of this man, and he committed adultery with his wife, and I ransomed him for one hundred sheep and a servant. I asked some men of knowledge and I was told that my son should be given one hundred lashes and exiled for a year, and that the wife of this man should be stoned.” The Messenger of Allah (ﷺ) said: 'By the One in Whose Hand is my soul, I will judge between you according to the Book of Allah (SWT). The one hundred sheep and the servant are to be returned to you and your son is to be given one hundred lashes and exiled for a year. Go tomorrow, O Unais, to the wife of this man and if she admits I then stone her.'”

Sunan Ibn Majah Book 20, Hadith 17 Next Hadith → “A man who had intercourse with the slave woman of his wife was brought to Nu`man bin Bashir. He said: 'I will pass no other judgement than that of the Messenger of Allah (ﷺ) He said: 'If (his wife) had made her lawful for him, then I will give him one hundred lashes, but if she has not given permission, I will stone him.' ”

Sunan Ibn Majah Book 20, Hadith 19