tellmeaboutislam:

Some of the Manners and Characteristics of the 

Prophet Muhammad peace be upon him

10. Excelling in Acts of Worship: A’ishah said that the Prophet of God (peace be upon him) used to pray during the night until his feet would swell. She said, ‘Why do you do this, O Messenger of God, while God has forgiven your past and future sins?’ The Prophet (peace be upon him) replied:

‘Shall I not be a grateful slave (of God)?’(Bukhari #4557) ^[6]