Some people from the tribe of Qays came to the Prophet ﷺ and asked him to send with them people who can teach them the Quran. So he sent with them seventy men from the Ansar, among them Harām ibn Milhān, the uncle of Anas. However, they betrayed them and killed them.

Harām was the first to be stabbed with a spear, and blood was flowing from him. He grabbed it, raised it towards the sky, and said, "I have won by the Lord of the Kāʿbah." Then the Quran was revealed regarding them, "Convey to our people that we have met our Lord, and He was pleased with us and made us pleased."  

أَنَّ نَاسًا مِنْ قَيْسٍ أَتَوُا النَّبِيَّ ﷺ فَسَأَلُوهُ أَنْ يَبْعَثَ مَعَهُمْ نَاسًا يُعَلِّمُونَهُمُ الْقُرْآنَ فَبَعَثَ مَعَهُمْ سَبْعِينَ رَجُلًا مِنَ الْأَنْصَارِ مِنْهُمْ حَرَامُ بْنُ مِلْحَانَ خَالُ أَنَسٍ فَغَدَرُوا بِهِمْ فَقَتَلُوهُمْ.

فَكَانَ حَرَامٌ أَوَّلَ مَنْ طُعِنَ بِعَنَزَةٍ وَكَانَ الدَّمُ يَخْرُجُ مِنْهُ فَتَلَقَّاهُ وَيَرْفَعُهُ إِلَى السَّمَاءِ وَيَقُولُ فُزْتُ وَرَبِّ الْكَعْبَةِ فَنَزَلَ فِيهِمْ قُرْآنٌ «بَلِّغُوا عَنَّا أَنَّا لَقِينَا رَبَّنَا فَرَضِيَ عَنَّا وَأَرْضَانَا»