What was the advice given by Prophet Muhammad (peace be upon him) to 'Umar bin Abi Salama regarding eating?
 Narrated Anas bin Malik:                     A tailor invited Allah's Apostle to a meal which he had prepared. I went along with Allah's Apostle and saw him seeking to eat the pieces of gourd from the various sides of the dish. Since that day I have liked to eat gourd. `Umar bin Abi Salama said: The Prophet, said to me, "Eat with your right hand."