עַל־כֵּ֤ן אָמַ֙רְתִּי֙ לִבְנֵ֣י יִשְׂרָאֵ֔ל כָּל־נֶ֥פֶשׁ מִכֶּ֖ם לֹא־תֹ֣אכַל דָּ֑ם וְהַגֵּ֛ר הַגָּ֥ר בְּתוֹכְכֶ֖ם לֹא־יֹ֥אכַל דָּֽם׃ (ס)
所以我曾對以色列人說：你們中間任何人都不可吃血；寄居在你們中間的外人也不可吃血。
Rashi
כל נפש מכם NO SOUL OF YOU [SHALL EAT BLOOD] — This is stated in addition to v. 10 to admonish the adults about their young children (that they should not permit them blood to eat — for “no soul” shall eat blood) (Sifra, Acharei Mot, Section 7 6; Yevamot 114a).
Chizkuni
על כן אמרתי, “therefore I have said, etc;” this is a reference to Leviticus 3,17.