It was narrated that Ibn 'Abbas said: The Messenger of Allah commanded us to perform ablution properly.
It was narrated from Abu Sa'eed Khudri that he heard : The Messenger of Allah say: Shall I not tell you of something by means of which Allah expiates for sins and increases good deeds? They said: Yes, O Messenger of Allah. He said: Perform ablution properly despite difficulties, increasing the number of steps one takes towards the mosque and waiting for the next prayer after prayer.'
It was narrated from Abu Hurairah that: The Prophet said: Sins are expiated by well-performed ablution despite difficulties, increasing the number of steps one takes towards the mosque, (and waiting for the next prayer after prayer).