The maternal aunt of Abu Umamah bin Sahl bin Hunayf (may Allah be pleased with her) narrated: The Messenger of Allah (peace and blessings be upon him) taught us to recite this verse of stoning: "The old man and the old woman, when they commit adultery, stone them both without fail, in return for the pleasure they took."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21917