The meaning of 'They are Libas for you...'

Q: Is it permissible for the two spouses to take off their clothes and look at each other while having sex? What is the meaning of the following Ayah: They are Libâs [i.e. body cover, or screen, or Sakan, (i.e. you enjoy the pleasure of living with them - as in Verse 7:189) Tafsir At-Tabarî ], for you and you are the same for them. ? Could you kindly explain how should we perform Ghusl (ritual bath following major ritual impurity) to offer Salah or without performing Salah?

(Part No. 19; Page No. 365) A: It is permissible for a man to see his wife while she is naked and a wife is likewise. As for the meaning of Allah's Saying: They are Libâs [i.e. body cover, or screen, or Sakan, (i.e. you enjoy the pleasure of living with them - as in Verse 7:189) Tafsir At-Tabarî ], for you and you are the same for them. Ibn `Abbas, Mujahid, Sa`id ibn Jubayr, Al Hasan, Qatadah, Al-Suddy and Muqatil ibn Hayyan said: The meaning is: They are your abode of peace. Al-Rabi` ibn Anas said: They are your wrapper and you are wrapper to them. Ibn Kathir (may Allah be merciful to him) said: The meaning is: Both husband and wife mix with one another, touch and have sex. Therefore, it is permissible for them to have sex during the nights of Ramadan in order not to impose hardship on them. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.