Thumamah bin Abdullah bin Anas (may Allah have mercy on him) said: I came to Sayyiduna Anas (may Allah be pleased with him) while he was flogging a slave-girl for zina. Whether married or unmarried, he would flog them.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحدود / 17094