﴿ وَقُل رَّبِّ ٱغْفِرْ وَٱرْحَمْ وَأَنتَ خَيْرُ ٱلرَّٰحِمِينَ ﴾

“Hence, [O believer,] say: “O my Sustainer! Grant [me] forgiveness and bestow Thy mercy [upon me]: for Thou art the truest bestower of mercy!””

And say ‘My Lord forgive and have mercy on believers — this ‘mercy’ adds to the ‘forgiveness’ in terms of God’s grace — and You are the best of the merciful’ the most excellent of those who have mercy.