I heard an-Nuʿman - i.e., bin Basheer - say: ʿUmar ؓ 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. (Using translation from Aḥmad 353)
«لَقَدْ رَأَيْتُ رَسُولَ اللَّهِ ﷺ يَظَلُّ الْيَوْمَ يَتَلَوَّى مَا يَجِدُ دَقَلًا يَمْلَأُ بَطْنَهُ»