The worship and devotions of Sayyidina Rasulullah

Mughirah bin Shu'bah Radiyallahu 'Anhu reports that Rasuluilah Sallallahu 'Alayhi Wasallam performed such lengthy nafl prayers, that his mubaarak legs became swollen. The Sahaabah said : "You undergo such great difficulties, where Allah had forgiven your past and the future sins."Rasulullah Sallallahu 'Alayhi Wasallam said: "(When Allah Ta'aala has blessed me so much) should I not be a grateful servant?"