What did the Prophet Muhammad (peace be upon him) forbid us to do with two dates, unless one takes the permission of one's companions?
 Narrated Jabala:                     "We were in Medina with some of the Iraqi people, and we were struck with famine and Ibn Az- Zubair used to give us dates. Ibn `Umar used to pass by and say, "The Prophet forbade us to eat two dates at a time, unless one takes the permission of one's companions."