Yahya related to me from Malik from Abu'z-Zinad from al-Araj fromAbu Hurayra that the Messenger of Allah, may Allah bless him and granthim peace, said, "Allah laughs at two men. One of them kills theother, but each of them will enter the Garden:
one fights in the wayof Allah and is killed, then Allah turns to the killer, so he fights(in the way of Allah) and also becomes a martyr."
USC-MSA web (English) reference: Book 21, Hadith 28
Arabic reference: Book 21, Hadith 989