وَأُخْرَىٰ لَمْ تَقْدِرُوا عَلَيْهَا قَدْ أَحَاطَ اللَّهُ بِهَا ۚ وَكَانَ اللَّهُ عَلَىٰ كُلِّ شَيْءٍ قَدِيرًا
“And [there are] other gains which are beyond your reach that Allah is keeping in store [for you]. For Allah is Most Capable of everything.”
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.