"I taught people from Ahtus-Suffah" Qur'an and how to write, and one of them gave me a bow. I said: 'It is not money, and I can shoot (with it) for the sake of Allah., I asked the Messenger of Allah ﷺ about it and he said: 'If it would please you to have a necklace of fire placed around your neck, then accept it.'"  

عَلَّمْتُ نَاسًا مِنْ أَهْلِ الصُّفَّةِ الْقُرْآنَ وَالْكِتَابَةَ فَأَهْدَى إِلَىَّ رَجُلٌ مِنْهُمْ قَوْسًا فَقُلْتُ لَيْسَتْ بِمَالٍ وَأَرْمِي عَنْهَا فِي سَبِيلِ اللَّهِ فَسَأَلْتُ رَسُولَ اللَّهِ ﷺ عَنْهَا فَقَالَ إِنْ سَرَّكَ أَنْ تُطَوَّقَ بِهَا طَوْقًا مِنْ نَارٍ فَاقْبَلْهَا  

"I taught a man the Qur'an, and he gave me a bow. I mentioned that to the Messenger of Allah ﷺ and he said: 'If you accept it you will be accepting a bow of fire.' So I returned it."  

عَلَّمْتُ رَجُلاً الْقُرْآنَ فَأَهْدَى إِلَىَّ قَوْسًا فَذَكَرْتُ ذَلِكَ لِرَسُولِ اللَّهِ ﷺ فَقَالَ إِنْ أَخَذْتَهَا أَخَذْتَ قَوْسًا مِنْ نَارٍ فَرَدَدْتُهَا