Sura al-Aḥzāb 33:33

وَقَرْنَ فِى بُيُوتِكُنَّ وَلَا تَبَرَّجْنَ تَبَرُّجَ ٱلْجَٰهِلِيَّةِ ٱلْأُولَىٰ وَأَقِمْنَ ٱلصَّلَوٰةَ وَءَاتِينَ ٱلزَّكَوٰةَ وَأَطِعْنَ ٱللَّـهَ وَرَسُولَهُۥٓ إِنَّمَا يُرِيدُ ٱللَّـهُ لِيُذْهِبَ عَنكُمُ ٱلرِّجْسَ أَهْلَ ٱلْبَيْتِ وَيُطَهِّرَكُمْ تَطْهِيرًا

wa-qarna fī buyūtikunna wa-lā tabarrajna tabarruja l-jāhiliyyati l-ūlā wa-aqimna l-ṣalāta wa-ātīna l-zakāta wa-aṭiʿna allāha wa-rasūlahu innamā yurīdu allāhu li-yudhhiba ʿankumu l-rijsa ahla l-bayti wa-yuṭahhirakum taṭhīran

And stay quietly in your houses, and make not a dazzling display, like that of the former Times of Ignorance; and establish regular Prayer, and give regular Charity; and obey Allah and His Messenger. And Allah only wishes to remove all abomination from you, ye members of the Family, and to make you pure and spotless.