Or HaChaim on Exodus 27:21/אור החיים על שמות כ״ז:כ״א

1 מאת בני ישראל. From the children of Israel. We may interpret these words according to the Tossephta Shekalim chapter 2 where we are told that all public offerings which are offered on the first of Nissan should preferably be of money donated for the offerings of the year just beginning; even if they are from money donated during the previous year they are acceptable as long as the money for them has been donated by an individual who has first made it over to the treasurer of the Temple so that it becomes public property. Our verse tells us something similar; the oil donated for the Lampstand becomes public property after the donor has turned it over to Moses as representative of the people.