9:43
عَفَا ٱللَّهُ عَنكَ لِمَ أَذِنتَ لَهُمْ حَتَّىٰ يَتَبَيَّنَ لَكَ ٱلَّذِينَ صَدَقُوا۟ وَتَعْلَمَ ٱلْكَـٰذِبِينَ
ʿafā l-lahu ʿanka lima adhinta lahum ḥattā yatabayyana laka alladhīna ṣadaqū wataʿlama l-kādhibīna
God forgive you [Prophet]! Why did you give them permission to stay at home before it had become clear to you which of them spoke the truth and which were liars?
May Allâh forgive you (O Muhammad صلى الله عليه وسلم). Why did you grant them leave (for remaining behind; you should have persisted as regards your order to them to proceed on Jihâd ), until those who told the truth were seen by you in a clear light, and you had known the liars?