Ibrahim narrated that Ma'qil bin Muqarrin al-Muzani came to Sayyiduna Abdullah (may Allah be pleased with him) and said: A slave woman of mine has committed fornication. He said: "Give her fifty lashes." He said: She has no husband. He said: "Her Islam is her ihsan (chaste status)."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 9656