It was narrated that Simak bin Harb said:
I heard an-Nu`man - i.e., bin Basheer - say: `Umar (رضي الله عنه) mentioned what the people had acquired of worldly gains and said: I saw the Messenger of Allah (ﷺ) remaining curled up [with hunger pangs] all day, unable to find even the worst type of dates with which to fill his stomach.