(2) باب تَعْظِيمِ الدَّمِ
It was narrated from 'Abdullah bin Mas'ud that:
The Prophet [SAW] said: "A man will come, holding another man's hand, and will say: 'O Lord, this man killed me.' Allah will say to him: 'Why did you kill him?' He will say: 'I killed him so that the glory would be to you.' He will say: 'It is to Me.' Then (another) man will come holding another man's hand, and will say: 'This man killed me.' Allah will say to him: 'Why did you kill him?' He will say: 'So that the glory would be to so and so.' He will say: 'It is not to so and so,' and the burden of sin will be upon him."
Reference: Sunan an-Nasa'i 3997
In-book reference: Book 37, Hadith 32
English translation: Vol. 5, Book 37, Hadith 4002