Abu Hurayrah (may Allah be pleased with him) says that a woman came to the Prophet (peace and blessings be upon him) and said: "O Messenger of Allah (peace and blessings be upon him)! I am so-and-so, the daughter of so-and-so." He (peace and blessings be upon him) said: "I have recognised you; what do you need?" She said: "My paternal cousin has proposed to me. Tell me what right a husband has over his wife. If I am able to bear it, I will marry; otherwise I will not." He said: "The husband's right over the wife is such that if blood, vomit or pus were flowing from him and the woman licked it with her tongue, she would still not have fulfilled her husband's right. If prostration to any human being were fitting, I would have commanded the wife to prostrate to her husband when he comes in to her, because of the excellence Allah has given him over the woman." The woman said: "By the One who sent you with the truth, I will never marry." [Sahih li-ghayrihi]
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13485