عَنِ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُمَا قَالَ بَعَثَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ خَالِدَ بْنَ الْوَلِيدِ إِلَى بَنِي أَحْسِبُهُ قَالَ جَذِيمَةَ فَدَعَاهُمْ إِلَى الْإِسْلَامِ فَلَمْ يُحْسِنُوا أَنْ يَقُولُوا أَسْلَمْنَا فَجَعَلُوا يَقُولُونَ صَبَأْنَا صَبَأْنَا وَجَعَلَ خَالِدٌ بِهِمْ أَسْرًا وَقَتْلًا قَالَ وَدَفَعَ إِلَى كُلِّ رَجُلٍ مِنَّا أَسِيرًا حَتَّى إِذَا أَصْبَحَ يَوْمًا أَمَرَ خَالِدٌ أَنْ يَقْتُلَ كُلُّ رَجُلٍ مِنَّا أَسِيرَهُ قَالَ ابْنُ عُمَرَ فَقُلْتُ وَاللَّهِ لَا أَقْتُلُ أَسِيرِي وَلَا يَقْتُلُ رَجُلٌ مِنْ أَصْحَابِي أَسِيرَهُ قَالَ فَقَدِمُوا عَلَى النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ فَذَكَرُوا لَهُ صَنِيعَ خَالِدٍ فَقَالَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ وَرَفَعَ يَدَيْهِ {اللَّهُمَّ إِنِّي أَبْرَأُ إِلَيْكَ مِمَّا صَنَعَ خَالِدٌ} مَرَّتَيْنِ
It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) sent Sayyiduna Khalid bin Walid (may Allah be pleased with him) towards Banu Jadhimah. He went and presented to them the invitation of Islam, but they could not properly say "Aslamna" (We have become Muslims); instead, they said "Saba'na, Saba'na" (We have become Sabians, we have become Sabians). Hearing this, Sayyiduna Khalid bin Walid (may Allah be pleased with him) began to kill some of them and take some as prisoners, and he handed over each prisoner to us. When morning came, he ordered us that each of us should kill his own prisoner. Ibn Umar (may Allah be pleased with him) said: I said, "By Allah! I will not kill my prisoner, nor will any of my companions kill his prisoner." Then, when the Companions came to the Noble Prophet (peace and blessings be upon him), they mentioned to him what Khalid (may Allah be pleased with him) had done. Upon hearing this, the Noble Prophet (peace and blessings be upon him) raised both his hands upwards and said twice: "O Allah! I declare myself free and disassociated from what Khalid has done."