Leviticus 13:54

καὶ συντάξει ὁ ἱερεύς καὶ πλυνεῖ ἐφ᾿ οὗ ἐὰν ᾖ ἐπ᾿ αὐτοῦ ἡ ἁφή καὶ ἀφοριεῖ ὁ ἱερεὺς τὴν ἁφὴν ἑπτὰ ἡμέρας τὸ δεύτερον