וְלָקַ֛ח לְחַטֵּ֥א אֶת־הַבַּ֖יִת שְׁתֵּ֣י צִפֳּרִ֑ים וְעֵ֣ץ אֶ֔רֶז וּשְׁנִ֥י תוֹלַ֖עַת וְאֵזֹֽב׃
And he shall take to cleanse the house two birds, and cedar-wood, and scarlet, and hyssop.
Read kabbalistic (mystical) interpretation of Leviticus 14:49: and classical mystical sources.