Answer:
(Fatwa: 2030/1635/B=1432)
It is not lawful to use zakah money in building toilet. This work should be done with common charity fund. If you give zakah for the construction of toilet then your zakah will not be paid.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
