Sunan Ibn Majah, Chapter: The Chapters on Business Transactions

"I heard Abbad bin Shurahbil, a man from Banu Ghubar, say: 'We suffered a year of famine, and I came to Al-Madinah. I came to one of its gardens and took an ear of corn, I rubbed it, ate some and put the rest in my garment. The owner of the garden came and beat me and took my garment. I came to the Prophet (saw) and told him (what had happened). He said to the man: "You did not feed him when he was hungry and you did not teach him when he was ignorant."' Then the Prophet (saw) told him to give back his garment and ordered that a Wasq or half a Wasq of food be brought to him."