Sahl bin Bkar bin Bashr سهل بن بكار بن بشر · Funerals (Kitab Al-Jana'iz)

I heard the Prophet (ﷺ) many times say: When a servant of Allah is accustomed to do a good work, then becomes ill or goes on journey, what was accustomed to do when he was well and staying at home will be recorded for him.

The Messenger of Allah (ﷺ) as saying: Do not sit on the graves, and do not pray facing them.