Surah Az-Zukhruf — Ayah 89 (43:89)
فَٱصۡفَحۡ عَنۡهُمۡ وَقُلۡ سَلَٰمٞۚ فَسَوۡفَ يَعۡلَمُونَ ٨٩
English translation (Saheeh International)
So turn aside from them and say, "Peace."1 But they are going to know.
- - Meaning safety or security, i.e., "I will not harm you." This was before permission was granted for armed struggle.
Brief commentary
So ignore them, and say to them whatever repels their evil - this was in Makkah - they will soon realise what punishment they will face.