Surah Fusilat (The Verses Prefectly Explained), Verse 33

وَمَنْ اَحْسَنُ قَوْلًا مِّمَّنْ دَعَاۤ اِلَی اللّٰهِ وَعَمِلَ صَالِحًا وَّقَالَ اِنَّنِیْ مِنَ الْمُسْلِمِیْنَ ۟

Wa man ahsanu qawlam mimman da'aaa ilal laahi wa 'amila saalihanw wa qaala innanee minal muslimeen

“Who is better in speech than one who calls (men) to Allah, works righteousness, and says, "I am of those who bow in Islam"?”

Quran 41:33 (Yusuf Ali Translation)