וּשְׁאָ֥ר עֵ֛ץ יַעְר֖וֹ מִסְפָּ֣ר יִֽהְי֑וּ וְנַ֖עַר יִכְתְּבֵֽם׃ (פ)
And the remnant of the trees of his forest shall be few, That a child may write them down.
Read halakhic rulings (Jewish law) on Isaiah 10:19 from the Mishneh Torah and classical halakhic sources, free online.