We may reap the irrigated fields in the valleys, but we may not stack. The people of Jericho reaped with the approval of the Sages and stacked against the Sages’ wishes, but the Sages did not issue a protest against them. One may reap unripe grain and feed it to animals. Said R’ Yehudah: When? When he began before it reached a third. R’ Shimon says: He may reap and feed [it] even after it has reached a third.