كيف يمكن التخلص من رأس مال مصدره الربا الحرام، مع العلم أن هذا المال استخدم في مشروع لمساعدة الأم؟

Whoever acquired money from usury while knowing its prohibition must dispose of it by spending it on public utilities such as building mosques and hospitals. As for money acquired from lawful trade with unlawful capital, scholars have differed concerning its ruling, and the most correct view is that one should dispose of half of it.