Rabbighfir Warham Wa Anta Khairur Rahemeen

The phrase "Rabbighfir Warham Wa Anta Khairur Rahemeen" is an Arabic supplication or dua. It can be translated to English as:

"O Lord, forgive and have mercy, for You are the Best of the Merciful."

This is a prayer seeking forgiveness and mercy from God, emphasizing His infinite and superior mercy and compassion. It is often recited in moments of seeking God's forgiveness and benevolence.