Related for Shekalim 8:6
בְּשַׂר קָדְשֵׁי קָדָשִׁים שֶׁנִּטְמָא, בֵּין בְּאַב הַטֻמְאָה, בֵּין בִּוְלַד הַטֻמְאָה, בֵּין בִּפְנִים, בֵּין בַּחוּץ, בֵּית שַׁמַּאי אוֹמְרִים, הַכֹּל יִשָּׂרֵף בִּפְנִים, חוּץ מִשֶּׁנִּטְמָא בְּאַב הַטֻמְאָה בַּחוּץ. וּבֵית הִלֵּל אוֹמְרִים, הַכֹּל יִשָּׂרֵף בַּחוּץ, חוּץ מִשֶּׁנִּטְמָא בִּוְלַד הַטֻמְאָה בִּפְנִים:
The flesh of holy of holies which became unclean, whether through an av hatumah or a v'lad hatumah, whether inside (the azarah) or outside — Beth Shammai say: All is to be burned inside [in the great beth hadeshen ("the house of the ashes") in the azarah, where they burned holy of holies which had become unfit. For all that becomes unfit in holiness is burned in (a place of) holiness], except what became unclean through an av hatumah outside, [for since the uncleanliness is grave, and the unfitness occurred outside, it is not to be brought into the azarah to be burned, since it did not become unfit in holiness.] Beth Hillel say: All is burned outside, except what became unclean through a v'lad hatumah inside, [in which instance there are two (factors dictating its being burned inside): its uncleanliness having been incurred inside, and its uncleanliness being of lesser gravity. But if it became unclean through an av hatumah, its uncleanliness is not to be kept within until it is burned, but it is to be taken out immediately and burned outside.]