Hadith.3978 - Commander of the Faithful, peace be upon him, entered the market of the date sellers. There, He (as) saw a woman crying while disputing with a date seller. Imam (as) said to her: "What is the matter?" She replied: "O Commander of the Faithful, I bought dates from this man for one dirham, but the bottom of the container was filled with poor-quality dates, unlike what I had seen at the top." Commander of the Faithful, peace be upon him, said to the seller: "Return her money." The seller refused, and Imam Ali ibn Abi Talib (as) repeated the instruction three times, but the seller continued to refuse. So, Imam Ali ibn Abi Talib (as) struck him with his staff until he returned the money to the woman. Imam Ali ibn Abi Talib (as) used to dislike covering the dates to conceal their defects.