Recall that you rushed (after the spoils), paying no attention to anyone, even when the messenger was calling from behind you. Consequently, He substituted one misery for another, that you may not grieve over anything you had missed, or agonize over any hardship you had suffered. God is Cognizant of everything you do.
إِذ تُصعِدونَ وَلا تَلوۥنَ عَلىٰ أَحَدٍ وَالرَّسولُ يَدعوكُم فى أُخرىٰكُم فَأَثٰبَكُم غَمًّا بِغَمٍّ لِكَيلا تَحزَنوا عَلىٰ ما فاتَكُم وَلا ما أَصٰبَكُم وَاللَّهُ خَبيرٌ بِما تَعمَلونَ
iz tus’idoona wa laa talwoona ‘alaaa ahadinw war Rasoolu yad’ookum feee ukhraakum fa asaabakum ghammam bighammil likailaa tahzanoo ‘alaa maa faatakum wa laa maaa asaabakum; wallaahu khabeerum bimaa ta’maloon