I said: Messenger of Allah, how should we approach our wives and how should we leave them? He replied: Approach your tilth when or how you will, give her (your wife) food when you take food, clothe when you clothe yourself, do not revile her face, and do not beat her. Abu Dawud said: The version of Shu'bah has: That you give her food when you have food yourself, and that you clothe her when you clothe yourself.  

قُلْتُ يَا رَسُولَ اللَّهِ نِسَاؤُنَا مَا نَأْتِي مِنْهُنَّ وَمَا نَذَرُ قَالَ ائْتِ حَرْثَكَ أَنَّى شِئْتَ وَأَطْعِمْهَا إِذَا طَعِمْتَ وَاكْسُهَا إِذَا اكْتَسَيْتَ وَلاَ تُقَبِّحِ الْوَجْهَ وَلاَ تَضْرِبْ  

"أنْ تُطعِمَهَا إِذَا طَعمْتَ، وَتَكْسُوَهَا إِذَا اكْتَسَيْتَ، وَلَا تَضْربَ الْوَجْهَ، وَلَا تُقبِّح، وَلَا تَهْجُر إِلَّا فِى البَيْتِ" .