Abu Sa'id and Abu Huraira reported God's Messenger as saying, “If the inhabitants of heaven and earth were to share in the blood of a believer, God would overturn them in hell.”
Tirmidhi transmitted it, saying this is a gharib tradition.
'Abdallah b. ‘Amr reported the Prophet as saying, “The passing away of the world would mean less to God than the murder of a Muslim man.”
Tirmidhi and Nasa’i transmitted it. Some traced it only to the Companion, and that is the soundest view. Ibn Majah transmitted it on the authority of al-Bara’ b. 'Azib.
Ibn ‘Abbas reported the Prophet as saying, “On the day of resurrection the slain will bring the slayer with his forelock and his head in his hand, his own jugular vein meanwhile dripping with blood, and he will say, ‘My Lord, he killed me’ till he brings him near the Throne.”
Abu Juhaifa said he asked ‘Ali whether he had any instruction not contained in the Qur’an and he replied, “By Him who split the seed and created the soul, I have nothing but what is in the Qur’an, except understanding which a man is given regarding His Book and what is in the document.” He asked him what the document contained, and he replied, “Blood wit, the setting free of a prisoner, and that a Muslim should not be killed for an infidel.”
