اَللَّاوِيِّينَ 13:54

يَأْمُرُ ٱلْكَاهِنُ أَنْ يَغْسِلُوا مَا فِيهِ ٱلضَّرْبَةُ، وَيَحْجُزُهُ سَبْعَةَ أَيَّامٍ ثَانِيَةً.

Then the priest shall command that they wash the thing wherein the plague is, and he shall shut it up seven days more: