Musnad Ahmad 215:4

Waki’ narrated to us, he said: Al-Fadl ibn Dalham narrated to us, from Al-Hasan, from Qabisah ibn Hurayth, from Salamah ibn al-Muhabbiq, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Take from me, take from me. Allah has indeed made a way for them: the unmarried [male] with the unmarried [female] is one hundred lashes and banishment for a year. And the married [male] with the married [female] is one hundred lashes and stoning."