Surah Az-Zukhruf, ayah 89

43:89

فَٱصۡفَحۡ عَنۡهُمۡ وَقُلۡ سَلَٰمٞۚ فَسَوۡفَ يَعۡلَمُونَ ٨٩

Fasfah 'anhum waqul salāmun fasawfa ya'lamūn

So turn aside from them and say, "Peace."1456 But they are going to know.

Footnotes

1456 Meaning safety or security, i.e., "I will not harm you." This was before permission was granted for armed struggle.