Mark 2:23
And it came to pass that as he went through the planted fields again on the sabbath day, his disciples began, as they walked, to pluck the ears of grain.
Matthew 12:1-8
At that time Jesus went on the sabbath day through the planted fields, and his disciples were hungry and began to pluck the ears of grain and to eat.
Luke 6:1-5
And it came to pass on the second sabbath after the first that he went through the grain fields and his disciples plucked the ears of grain and ate, rubbing them in their hands.
Deuteronomy 23:24-25
When thou comest into thy neighbour's vineyard, then thou may eat grapes, thy fill at thine own pleasure; but thou shalt not put any in thy vessel.