Sayyidina Rasulullah Saliallahu 'Alayhi Wasallam performing wudu at the time of eating

Ibn 'Abbaas Radiyallahu'Anhu says: "Once when Rasulullah Sallailahu 'Alayhi Wasallam came out of the toilet, after relieving himself from the call of nature, food was served to him. They asked if water for wudu should be brought? He replied: 'I have been commanded to perform wudu when 1 perform salaah"'.