Mark 2:23
It happened that he was going on the Sabbath day through the grain fields, and his disciples began, as they went, to pluck the ears of grain.
Matthew 12:1-8
At that time, Jesus went on the Sabbath day through the grain fields. His disciples were hungry and began to pluck heads of grain and to eat.
Luke 6:1-5
Now it happened on the second Sabbath after the first, that he was going through the grain fields. His disciples plucked the heads of grain, and ate, rubbing them in their hands.
Deuteronomy 23:24-25
When you come into your neighbor's vineyard, then you may eat of grapes your fill at your own pleasure; but you shall not put any in your vessel.