Two Muslim Nations invented new systems in order for disabled Muslims to figure out prayer times. The Scholars accepted these innovations (biddah) for the sake of public good. @DrShadeeElmasry

They are :

1.Morocco

2.Turkey

Morocco invented a system for deaf Muslims: pic.twitter.com/LTJ6VD0Lau

— Akbar Zab (@ZabAkbar) December 27, 2019