"I said: 'O 'Amr bin 'Abasah! Tell us a Hadith that you heard from the Messenger of Allah ﷺ without forgetting or omitting anything.' He said: 'I heard the Messenger of Allah ﷺ say: Whoever shoots an arrow in the cause of Allah, and it reaches the enemy, whether it misses or hits, it will be as if he freed slave. Whoever frees a believing slave, that will be a ransom for him, limb by limb, from the Fire of Hell. Whoever develops a gray hair in the cause of Allah, it will be light for him on the Day of Resurrection." (Using translation from Nasāʾī 3145)
حَدِّثْنَا حَدِيثًا سَمِعْتُهُ مِنْ رَسُولِ اللهِ ﷺ لَيْسَ فِيهِ نِسْيَانٌ وَلَا تنْقُصُ فَقَالَ سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ «مَنْ رَمَى بِسَهْمٍ فِي سَبِيلِ اللهِ فَبَلَغَ الْعَدُوَّ أَخْطَأَ أَوْ أَصَابَ كَانَ كَعِدْلِ رَقَبَةٍ وَمَنْ أَعْتَقَ رَقَبَةً مَسْلَمَةً كَانَ فِدَاءُ كُلِّ عُضْوٍ مِنْهُ عُضْوًا مِنْهُ مِنْ نَارِ جَهَنَّمَ وَمَنْ شَابَ شَيْبَةً فِي سَبِيلِ اللهِ كَانَتْ لَهُ نُورًا يَوْمَ الْقِيَامَةِ»