BT Naz 21a(15) :בקמ׳ מיתפסין טפי מכדי דיבור לא מיתפסין‏ : (if ) they are (all linked) to the first one, they cannot be put into a state (of Naziriteship) for longer than the time of (his) speaking
See the entire entry for tps vb. to grab, to hold