from Abu ‘Ubaydah ibn al-Jarrah, may Allah be pleased with him, who said: I said to the Messenger of Allah, peace and blessings be upon him, “Which people will suffer the severest punishment on the Day of Resurrection?” He said: “A man who killed a prophet, or a man who enjoined what is right and forbade what is wrong.” Then the Messenger of Allah, peace and blessings be upon him, recited: “and kill the prophets without right, and kill those among the people who command justice,” until he reached His words: “and they will have no helpers.” Then the Messenger of Allah, peace and blessings be upon him, said: “O Abu ‘Ubaydah, the Children of Israel killed forty-three prophets in a single hour at the beginning of the day. Then one hundred and twelve men from among the worshippers of the Children of Israel rose up; they enjoined what is right upon those who had killed them and forbade them what is wrong. So they killed them all at the end of that same day. They are the ones whom Allah mentioned in His Book and concerning whom He sent down the verse.” (2)
“Give them tidings”—that is, inform them—“of a painful punishment,” meaning a grievous one. The fa’ has been prefixed to the predicate of inna; the intended construction is: those who disbelieve and kill—give them tidings. This is because one does not say, “Indeed, Zayd is then standing.”
“Those are the ones whose deeds have come to nothing in this world and the Hereafter, and they will have no helpers.” (22)