Shama-il Tirmidhi Chapter 025, Hadith Number 033 (175).
Hazrat Anas radiyallahu anhu says, Rasoolullah sallallahu alaihe wasallam liked to eat the remains (known as â€˜powpraâ€™ in Gujarati).
This is the sign of the complete humbleness of Sayyidina Rasoolullah sallallahu alaihe wasallam. He first fed others, then chose for himself what was left over. There are many instances in the ahaadith that inform us of this. Some Ulama state that the reason for this is because food at the bottom is less fatty and also digests quickly.