Numbers 19:14

הוּא יִתְחַטָּא־בוֹ בַּיּוֹם הַשְּׁלִישִׁי וּבַיּוֹם הַשְּׁבִיעִי יִטְהָר וְאִם־לֹא יִתְחַטָּא בַּיּוֹם הַשְּׁלִישִׁי וּבַיּוֹם הַשְּׁבִיעִי לֹא יִטְהָֽר

the same shall purify himself therewith on the third day and on the seventh day, and he shall be clean; but if he purify not himself the third day and the seventh day, he shall not be clean.

כָּֽל־הַנֹּגֵעַ בְּמֵת בְּנֶפֶשׁ הָאָדָם אֲשֶׁר־יָמוּת וְלֹא יִתְחַטָּא אֶת־מִשְׁכַּן יְהוָה טִמֵּא וְנִכְרְתָה הַנֶּפֶשׁ הַהִוא מִיִּשְׂרָאֵל כִּי מֵי נִדָּה לֹא־זֹרַק עָלָיו טָמֵא יִהְיֶה עוֹד טֻמְאָתוֹ בֽוֹ

Whosoever toucheth the dead, even the body of any man that is dead, and purifieth not himself—he hath defiled the tabernacle of the LORD—that soul shall be cut off from Israel; because the water of sprinkling was not dashed against him, he shall be unclean; his uncleanness is yet upon him.

וְכֹל כְּלִי פָתוּחַ אֲשֶׁר אֵין־צָמִיד פָּתִיל עָלָיו טָמֵא הֽוּא

And every open vessel, which hath no covering close-bound upon it, is unclean.

וְכֹל אֲשֶׁר־יִגַּע עַל־פְּנֵי הַשָּׂדֶה בַּֽחֲלַל־חֶרֶב אוֹ בְמֵת אֽוֹ־בְעֶצֶם אָדָם אוֹ בְקָבֶר יִטְמָא שִׁבְעַת יָמִֽים

And whosoever in the open field toucheth one that is slain with a sword, or one that dieth of himself, or a bone of a man, or a grave, shall be unclean seven days.