When a muslim hears thats someone has died, this is the most common thing that is said:
إِنَّا لِلَّهِ وَإِنَّا إِلَيْهِ رَاجِعُونَ
Inna Lillahi wa inna ilayhi raji'un
"Indeed we belong to Allah, and indeed to Him we will return."
This is the most common thing people in Islam say when someone dies. You'll hear people say it, you'll see pictures of the verse from the Qu'ran being sent around and it'll travel accross messaging mediums such as WhatsApp.
