بسم الله الرحمن الرحيم
(Fatwa: 1105/1110/M=9/1434)
It is not right to use the interest money to construct toilets for the mosque or madrasa. Such malicious amount should be given in charity to the poor and needy ones without the intention of reward.
لأن سبيل الكسب الخبيث التصدق الخ (شامى)
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband
