O Allah, so-and-so the son of so-and-so is under Your protection and mercy. So, protect him from the trial of the grave and the torture of Hellfire. You are worthy of fulfilling promises and worthy of praise. O Allah, forgive him and have mercy upon him, as You are the Most Forgiving and the Most Merciful

The Prophet (may Allah's peace and blessings be upon him) performed the funeral prayer over a deceased from among the Muslims. Then, he said what means: O Allah, so-and-so the son of so-and-so is under Your safety, protection, and seeking Your forgiveness. Make him firm during the questioning and examination in the grave and save him from the torment of the Fire. Indeed, You do not break Your promise and You are worthy of truth. O Allah, forgive him and be merciful to him.

You are Oft-Forgiving of sins and Most Merciful by accepting acts of obedience and multiplying rewards.