Surah Aali Imran (The Family of Imran), Verse 153

اِذْ تُصْعِدُوْنَ وَلَا تَلْوٗنَ عَلٰۤی اَحَدٍ وَّالرَّسُوْلُ یَدْعُوْكُمْ فِیْۤ اُخْرٰىكُمْ فَاَثَابَكُمْ غَمًّا بِغَمٍّ لِّكَیْلَا تَحْزَنُوْا عَلٰی مَا فَاتَكُمْ وَلَا مَاۤ اَصَابَكُمْ وَاللّٰهُ خَبِیْرٌ بِمَا تَعْمَلُوْنَ ۟

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

“Behold! ye were climbing up the high ground, without even casting a side glance at anyone, and the Messenger in your rear was calling you back. There did Allah give you one distress after another by way of requital, to teach you not to grieve for (the booty) that had escaped you and for (the ill) that had befallen you. For Allah is well aware of all that ye do.”

Quran 3:153 (Yusuf Ali Translation)