Dua when visiting the cemetery

As-salâmu alaykum ahlad-diyyari minal-mu’minina wa muslimina, wa inna inshâ allâhu bikum lala-hiquna, as’alullâha lana wa1akumul-afiyah.

Peace be upon you, O dwellers of this place - Believers and Muslims. Verily when Allah, wills, we will join you. I ask Allah for our and your safely. (Muslim)