اَلسَلامُ عَلَيْكُم وَرَحْمَةُ اللهِ وَبَرَكاتُهُ My granny has dementia, has no memory and does not fast does she have to pay Fidyah? جزاك الله خيراً

Ustadh AbdulAziz al-Haqqan

If her case has reached the point that there is no takleef upon her then there is nothing upon u.