Safiyyah bint Abi Ubayd (may Allah have mercy on her) said that a man was brought to Sayyiduna Abu Bakr (may Allah be pleased with him) who had had intercourse with a slave girl; he was unmarried, and she had become pregnant. He had also confessed, so he (may Allah be pleased with him) had him given a hundred lashes and exiled him to Fadak.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحدود / 16975