Jami` at-Tirmidhi 2482
جامع الترمذي#2482Da'ifShahib bin Bashir narrated from Anas bin Malik that the Messenger of Allah (s.a.w) said:"All expenditures are in Allah's Cause, except for buildings, for there is no good in it
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirDaif
Al-AlbaniDaif
Zubair Ali ZaiDaif
In-book reference: 37:68