Al-Furqan 25:63

وَعِبَادُ ٱلرَّحۡمَٰنِ ٱلَّذِينَ يَمۡشُونَ عَلَى ٱلۡأَرۡضِ هَوۡنٗا وَإِذَا خَاطَبَهُمُ ٱلۡجَٰهِلُونَ قَالُواْ سَلَٰمٗا 63

And the servants of the Most Merciful are those who walk upon the earth easily, and when the ignorant address them [harshly], they say [words of] peace