Zevachim 88B

הוגעו לנתר ואהל ⁠– אף במים אין מכבסים. ויש אומרים: אין מכבסין אותן כל עיקר, שאין עניות במקום עשירות.

But if the garments became so dirty that they reached a point that laundering them would require the use of natron or soap, then one may not launder them, even with water. And some say: One may not launder the priestly vestments at all, even if laundering them with water would suffice, because there is no poverty in a place of wealth, i.e., only priestly vestments that were clean as new should be worn, as is befitting the Temple service, and those that were laundered should not be worn.

תנו רבנן: מעיל ⁠– כולו של תכלת היה, שנאמר: ״ויעש את מעיל האפוד כליל תכלת״. שוליו כיצד? מביא תכלת וארגמן ותולעת שני שזורין, ועושה אותן כמין רימונים שלא פיתחו פיהן, וכמין קונאות של קנסות שבראשי תינוקות.

§ With regard to the priestly vestments, A baraita states: The robe of the High Priest was sewn entirely of tekhelet wool, as it is stated: “And he made the robe of the ephod of woven work, all of tekhelet wool” (Exodus 39:22). With regard to its skirts, concerning which it states: “And they made upon the skirts of the robe pomegranates of tekhelet, and purple, and scarlet, twined” (Exodus 39:24), how were they fashioned? The tailor brings tekhelet wool, and purple wool, and scarlet wool, which are twined together, and fashions them to appear as pomegranates that have not opened their mouths, i.e., they are sewn in the appearance of pomegranates that are not yet ripe enough for the crown on top to open, and as the cones [konaot] of the helmets [kenasot] that are found on the heads of children.

ומביא שבעים ושנים זגין שבהן שבעים ושנים עינבלין, ותולה בהן שלשים וששה בצד זה ושלשים וששה מצד זה. רבי דוסא אומר משום רבי יהודה: שלשים וששה היו ⁠– שמונה עשרה מצד זה ושמנה עשרה מצד זה.

And in order to fulfill that which is stated: “And they made bells of pure gold, and put the bells between the pomegranates” (Exodus 39:25), he brings 72 bells, i.e., the outer part of bells, made from gold, that contain inside them 72 bell clappers, and he suspends them on the skirts: 36 of each, i.e., pomegranates and bells, on this side of the robe, and 36 of each on that side, as the verse states: “A bell and a pomegranate, a bell and a pomegranate, upon the skirts of the robe around it” (Exodus 39:26). R' Dosa says in the name of R' Yehuda: There were 36 bells suspended around the skirt, 18 from this side and 18 from that side.