Sforno on Numbers 9:22/ספורנו על במדבר ט׳:כ״ב

1או יומים או חדש או ימים, this is now already the fifth time that the Torah belabours the subject of these journeys, something totally unprecedented. It alerts us to how sometimes the people did not even have time to send their beasts to graze, whereas on other occasions they had to dismantle everything at very short notice, any plans they had made having to be abandoned.