Al-Ahzab 33:53 يا ايها الذين امنوا لا تدخلوا بيوت النبي الا ان يوذن لكم الى طعام غير ناظرين اناه ولاكن اذا دعيتم فادخلوا فاذا طعمتم فانتشروا ولا مستانسين لحديث ان ذالكم كان يوذي النبي فيستحيي منكم والله لا يستحيي من الحق واذا سالتموهن متاعا فاسالوهن من وراء حجاب ذالكم اطهر لقلوبكم وقلوبهن وما كان لكم ان توذوا رسول الله ولا ان تنكحوا ازواجه من بعده ابدا ان ذالكم كان عند الله عظيما ٥٣

O you who believe, do not enter the houses of the Prophet, unless you are permitted for a meal, not (so early as) to wait for its preparation. But when you are invited, go inside. Then, once you have had the meal, just disperse, and (do) not (sit for long) being keen for a chat. This (conduct of yours) hurts the Prophet, but he feels shy of (telling) you (about it), but Allah is not shy of the truth. And when you ask any thing from them (the blessed wives of the Prophet), ask them from behind a curtain. That is better for the purity of your hearts and their hearts. It is not allowed for you that you hurt Allah’s Messenger, nor that you ever marry his wives after him. Indeed, it would be an enormity in the sight of Allah.