O you who believe! do not be like those who have concealed (the truth) and who say of their brethren when they (- the latter) travel in the land or go forth on any campaign (and fall martyrs), `Had they been with us they would not have died or been killed.' They say it so that Allâh makes this a cause of intense regret in their hearts. (The fact, however, is that) it is Allâh Who gives life and causes death. Allâh sees well all what you do.