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حَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ حَدَّثَنَا وَكِيعٌ عَنْ سُفْيَانَ عَنْ مَنْصُورٍ عَنْ سَالِمِ بْنِ أَبِي الْجَعْدِ عَنْ ثَوْبَانَ قَالَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ اسْتَقِيمُوا وَلَنْ تُحْصُوا وَاعْلَمُوا أَنَّ خَيْرَ أَعْمَالِكُمْ الصَّلَاةَ وَلَا يُحَافِظُ عَلَى الْوُضُوءِ إِلَّا مُؤْمِنٌ

Narrated by Ali bin Muhammad, narrated by Waki’ from Sufyan from Manshur from Salim bin Abu Al Ja’d from Thawban, he said; The Messenger of Allah (peace be upon him) said: 'Be steadfast, though you cannot fully count (your deeds). Know that the best of your deeds is prayer, and only a believer maintains wudu.'