Habib bin Salim (may Allah have mercy on him) says that once a man was brought to Hazrat Nu'man (may Allah be pleased with him), whose wife had made it lawful for her husband to benefit from her slave-girl. He said, "I will decide about this matter as the Prophet Muhammad (peace be upon him) would have decided. If his wife has permitted him to benefit from her slave-girl, I will give him one hundred lashes, and if she has not permitted, I will stone him to death." It was found that his wife had indeed given him permission, so he gave him one hundred lashes. The previous hadith is also narrated through this second chain.