Abu Ayyub Ansaari Radiyallahu'Anhu reports:
"We were once present in the assembly of Rasulullah Sallallahu 'Alayhi Wasallam. Food was brought to him. 1 did not observe any food that had so much barakah at the beginning and at the end of which there was no barakah left in the food. We therefore asked Rasulullah Sallallahu 'Alayhi Wasallam reason?. He replied: 'In the beginning we all recited 'Bismillah' before we began eating. Then someone in the end joined us, and did not recite ''Bismillah'. The shaitaan ate with him'".
Aayeshah radiyallahu 'Anha says:
"Rasulullah Sallallahli 'Alayi Wasallam said: 'When one eats and has forgotten to recite 'Bismillah', then when one remembers while eating, one should recite 'Bismillahi awwalahu wa aa-khirahu'".
Umar bin Abi Salamah Radiyallahu 'Anbu came to Rasululah Sallallahu 'Alayhi Wasallam while food had been served to him. Rasulullah Saliallahu 'Alayhi Wasallam said:
"O my Son come near, recite Bismillah, and eat with your right hand from that portion which is in front of you".
Abu Sa'eed Khudari Radiyallahu 'Anhu says:
"After eating Rasulullah Sallallahu 'Alayhi Wasallam read this du'aa:Alhamdulillaahil-ladhi at-amanaa wa-saqaa-naa wa-ja-a-lanaa muslimeen.
Abu Umaamah Radiyallahu-'Anhu says:
"When the dastarkhaan (table cloth) was being removed in the presence of Rasulullah Sallailahu 'Alayhi Wasallam, Rasulullah Saliallahu 'Alayhi Wasallam recited this du'aa:Alhamdulillaahi hamdan kathiran tayyiban mubaarakan fihi-ghayra mu-wadda-in wa-laa mus-taghnan 'anhu rabbuna.
Aayeshah Radiyallahu 'Anha relates that while Rasulullah Saliallahu aIayhi Wasallam and six of the Sahaabah were having meals, a badawi came. He ate all the food up in two bites. Rasulullah Sallallahu 'Alayhi Wasallam said:
"If he had read 'Bismillah' it should have been sufficient for all."
Anas Radiyallahu 'Anhu relates from Rasulullah Sallallahu 'Alayhi Wasallam that, Allah Ta'aala is pleased with that servant who eats one morsel (bite) or drinks one sip and gives thanks to Him.