What did Allah's Apostle (saw) do when he was called to prayer while he was cutting the shoulder of mutton?
 Narrated `Amr bin Umaiyay Ad-Damri:                     I saw Allah's Apostle cutting part of the shoulder of mutton with a knife. He ate of it and then was called for prayer whereupon he got up and put down the knife and offered the prayer without performing new ablution.