وَمَنْ أَحْسَنُ قَوْلًا مِّمَّن دَعَآ إِلَى ٱللَّهِ وَعَمِلَ صَـٰلِحًا وَقَالَ إِنَّنِى مِنَ ٱلْمُسْلِمِينَ

Waman ahsanu qawlan mimman daAAaila Allahi waAAamila salihan waqalainnanee mina almuslimeen

And who is better in speech than one who invites to Allāh and does righteousness and says, "Indeed, I am of the Muslims."