וְכָל־בֶּ֧גֶד וְכָל־כְּלִי־ע֛וֹר וְכָל־מַעֲשֵׂ֥ה עִזִּ֖ים וְכָל־כְּלִי־עֵ֑ץ תִּתְחַטָּֽאוּ׃ (ס)
무릇 의복과 무릇 가죽으로 만든 것과 무릇 염소털로 만든 것과 무릇 나무로 만든 것을 다 깨끗케 할지니라
Rashi on Numbers
וכל מעשה עזים AND EVERYTHING MADE FROM GOATS — everything: this serves to include objects made from the horns, claws and bones (Chullin 25b).
Siftei Chakhamim
This includes utensils made from the horns. Rashi wishes to answer the question: Why was it necessary to say “Everything made of goat products”? Surely it is written “every leather article.”
Rav Hirsch on Torah
V. 20. וכל בגד וגו׳ (siehe Wajikra 11, 32). תתחטאו. Da כל בגד וגו׳ das Objekt des Satzes ist, so kann das Reflexive des תתחטאו nur als Terminativ wie והתנחלתם אותם (Wajikra 25, 46) zu verstehen sein: jedes Gewand usw. habt ihr euch zu entsündigen.