(An-Naml) 27 : 70
وَلَا تَحْزَنْ عَلَيْهِمْ وَلَا تَكُنْ فِي ضَيْقٍ مِمَّا يَمْكُرُونَ
And you grieve not upon them or not be in distress from what they plot.
See explanation 5: 67; 16: 127-128 and 27: 50.