وَلِلَّهِ جُنُودُ السَّمَاوَاتِ وَالْأَرْضِ ۚ وَكَانَ اللَّهُ عَزِيزًا حَكِيمًا
“To Allah [alone] belong the forces of the heavens and the earth. And Allah is Almighty, All-Wise.”
This ayah is part of Surah al-Fath, revealed -- as this event's own significance note states -- "concerning this incident" (Q48:1), the Treaty of Hudaybiyyah.