لِلتَّعْلِيمِ فِي يَوْمِ ٱلنَّجَاسَةِ وَيَوْمِ ٱلطَّهَارَةِ. هَذِهِ شَرِيعَةُ ٱلْبَرَصِ».
To teach when it is unclean, and when it is clean: this is the law of leprosy.