וְיֶתֶר֩ דִּבְרֵ֨י יְהֽוֹיָקִ֜ים וְתֹֽעֲבֹתָ֤יו אֲשֶׁר־עָשָׂה֙ וְהַנִּמְצָ֣א עָלָ֔יו הִנָּ֣ם כְּתוּבִ֗ים עַל־סֵ֛פֶר מַלְכֵ֥י יִשְׂרָאֵ֖ל וִֽיהוּדָ֑ה וַיִּמְלֹ֛ךְ יְהוֹיָכִ֥ין בְּנ֖וֹ תַּחְתָּֽיו׃ (פ)
Rashi on II Chronicles
and the abominations that he was intimate with his mother.
Rashi on II Chronicles
and that which was found upon him This alludes to a tattoo, [something found on the body].