When the Prophet ﷺ returned from Al-Khandaq (i.e. Trench) and laid down his arms and took a bath, Gabriel came and said (to the Prophet ﷺ ), You have laid down your arms? By Allah, we angels have not laid them down yet. So set out for them." The Prophet ﷺ said, "Where to go?" Gabriel said, "Towards this side," pointing towards Banu Quraiza. So the Prophet ﷺ went out towards them.
لَمَّا رَجَعَ النَّبِيُّ ﷺ مِنَ الْخَنْدَقِ وَوَضَعَ السِّلاَحَ وَاغْتَسَلَ أَتَاهُ جِبْرِيلُ عَلَيْهِ السَّلاَمُ فَقَالَ قَدْ وَضَعْتَ السِّلاَحَ وَاللَّهِ مَا وَضَعْنَاهُ فَاخْرُجْ إِلَيْهِمْ قَالَ فَإِلَى أَيْنَ قَالَ هَا هُنَا وَأَشَارَ إِلَى بَنِي قُرَيْظَةَ فَخَرَجَ النَّبِيُّ ﷺ إِلَيْهِمْ