When the prophet and his companions won the battle of BADR, and vanquished the Pagans; some of the learned Jews said: ``The promised prophet is marked invincible in our scriptures, and Mohammad, is of surety the one we expect to come,'' Others said: ``We should wait a little longer, until another war breaks in, and then judge from what has happened.'' Then when Muslims had some failure in the battle of Ohud, the Jews said: ``No! Mohammad can't be the promised prophet for whom we are longing, because he proved in the battle of Ohud that he is conquerable.'' The verse was sent down to answer them.