Sunan Ibn Majah 741
سنن ابن ماجه#741Da'ifIt was narrated that 'Umar bin Khattab said:The Messenger of Allah said: "No people's deeds ever became evil deeds but they started to adorn their places of worship
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniVery Daif
Muhammad Fouad Abd al-BaqiVery Daif
Shuaib Al ArnautDaif
Zubair Ali ZaiDaif
In-book reference: 4:7