صحیح ابن حبان
Ibn Hibban
كتاب السير
Book of Expeditions
باب فضل الشهادة - ذكر كيفية اجتماع القاتل الكافر المسلم في الجنة إذا سدد-
Chapter on the Virtue of Martyrdom - On how the killer and the killed (disbeliever and Muslim) both enter Paradise if the disbeliever is guided
1 hadith
Hadith 4667
Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates: The Prophet Muhammad (peace and blessings be upon him) said: "Indeed, Allah smiles at two men, one of whom has killed the other, yet both will enter Paradise. One person participates in jihad in the way of Allah and is martyred, then Allah grants the killer the ability to repent (he becomes a Muslim), and then he too participates in jihad in the way of Allah and is martyred."