Sunan Ibn Majah 279
سنن ابن ماجه#279Da'ifIt was narrated that Abu Umamah said, in a marfu' Hadith:"Adhere to righteousness and it is a blessing if you are able to do so. Know that the best of your deeds is prayer and that no one maintains his ablution except a believer
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniDaif
Muhammad Fouad Abd al-BaqiDaif
Shuaib Al ArnautDaif
Zubair Ali ZaiDaif
In-book reference: 1:13