Shahib 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." (FR)
English reference (FR): Vol. 4, Book 11, Hadith 2482 (FR)
Arabic reference (FR): Book 37, Hadith 2670 (FR)