Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) says that the Messenger of Allah (peace and blessings be upon him) said: "O Attab bin Asid! I have sent you to the people of Makkah; forbid them from such-and-such." He mentioned the hadith, and in it is: "There is no li'an between four: (1) a Jewish woman married to a Muslim, (2) a Christian woman married to a Muslim, (3) a free woman married to a slave, (4) a slave woman married to a free man."
This hadith with this chain is batil (false); the hadiths of Yahya bin Salih al-Ayli are not preserved (ghayr mahfuzah).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب اللعان / 15304