´It was narrated from Abu Hurairah that the Prophet (ﷺ) said:` "Allah, the Mighty and Sublime, likes it when there are two men, one of whom killed the other, then they both enter Paradise." And another time he said: "He laughs at two men, one of whom killed the other, then they both entered Paradise."
Hadith Referenceسنن نسائي / كتاب الجهاد / 3167
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه