Abu Dawud
Foods
Book Number: 021 / Hadith Number: 3755
Narated By Wahshi ibn Harb : The Companions of the Prophet (pbuh) said: Apostle of Allah (pbuh) we eat but we are not satisfied. He said: Perhaps you eat separately. They replied: Yes. He said: If you gather together at your food and mention Allah's name, you will be blessed in it.