حَدَّثَنَا أَحْمَدُ بْنُ عَبْدَةَ، حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، حَدَّثَنَا مُوسَى بْنُ سَالِمٍ أَبُو جَهْضَمٍ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ عُبَيْدِ اللَّهِ بْنِ عَبَّاسٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ أَمَرَنَا رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ بِإِسْبَاغِ الْوُضُوءِ ‏.‏

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)."