It is narrated from Sayyiduna Zayd bin Arqam (may Allah be pleased with him) that Sayyiduna Mu'adh (may Allah be pleased with him) said: "O Messenger of Allah, the People of the Book prostrate to their bishops and patriarchs; should we not prostrate to you?" He (peace and blessings be upon him) said: "If I were to command anyone to prostrate to anyone, I would command the woman to prostrate to her husband. And a woman does not fulfil the right of her husband until, even if he asks her for intimacy on a camel's saddle, she gives herself to him."
Hadith Referenceالمعجم الكبير للطبراني / باب الزاي / 5097