וּמִן־הַשֶּׁ֖מֶן יִצֹ֣ק הַכֹּהֵ֑ן עַל־כַּ֥ף הַכֹּהֵ֖ן הַשְּׂמָאלִֽית׃
And the priest shall pour of the oil into the palm of his own left hand.
Targum Jonathan on Leviticus
And the priest shall pour some of the oil with his right hand into the priest's left hand,