Devarim 26:4

ולקח הכהן המנה מידך AND THE PRIEST SHALL TAKE THE BASKET OUT OF THY HAND in order to wave it. The priest places his hand beneath the hands of the owner and so waves it (Sukkah 47b).

וְלָקַ֧ח הַכֹּהֵ֛ן הַטֶּ֖נֶא מִיָּדֶ֑ךָ וְהִ֨נִּיח֔וֹ לִפְנֵ֕י מִזְבַּ֖ח יְהֹוָ֥ה אֱלֹהֶֽיךָ׃

And the priest shall take the basket out of thy hand, and set it down before the altar of the Lord thy God.