This excerpt is taken from the book of Sheikh Abi Abdul Saboor Abdul Ghafoor Damni Fazail al-Jihad.
عن أبى هريرة أن رسول الله صلى الله عليه وسلم قال لا يجتمع كافر وقاتله فى النار.
"Abu Hurairah رضي الله عنه narrated that the Messenger of Allah صلی اللہ علیہ وسلم said: 'The disbeliever and the one who kills him (a Muslim) can never be together in Hell.'"
Reference: (Sahih Muslim) (Narrated by Muslim, Book of Leadership, Chapter: Whoever kills a disbeliever and then repents, Number: 1891)
Explanation
A non-Muslim who is killed on the battlefield by a Muslim Mujahid is certainly destined for Hell, firstly because he is a disbeliever, and secondly because he went out to the battlefield against Islam and Muslims. Whereas the Muslim Mujahid who kills him, if he remains steadfast on the right path, is destined for Paradise. Therefore, how can these two be together in Hell?
