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.'"
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا يَحْيَى بْنُ أَبِي بُكَيْرٍ، حَدَّثَنَا زُهَيْرُ بْنُ مُحَمَّدٍ، عَنْ عَبْدِ اللَّهِ بْنِ مُحَمَّدِ بْنِ عَقِيلٍ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ، أَنَّهُ سَمِعَ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ قَالَ " أَلاَ أَدُلُّكُمْ عَلَى مَا يُكَفِّرُ اللَّهُ بِهِ الْخَطَايَا وَيَزِيدُ بِهِ فِي الْحَسَنَاتِ " . قَالُوا بَلَى يَا رَسُولَ اللَّهِ . قَالَ " إِسْبَاغُ الْوُضُوءِ عَلَى الْمَكَارِهِ وَكَثْرَةُ الْخُطَا إِلَى الْمَسَاجِدِ وَانْتِظَارُ الصَّلاَةِ بَعْدَ الصَّلاَةِ " .
IbnMaja
The Book of Purification and its Sunnah • Hadith 427