What should a young man do who does not have money to offer a sacrifice (dam) if he misses one of the pillars of Hajj or Umrah?

Hajj has pillars, duties, and supererogatory acts (Sunan). Whoever abandons a pillar has not completed his ritual, and he does not exit the state of ihram until he performs it. Whoever abandons a duty must offer a sacrifice (hady); it is obligatory due to a deficiency in Hajj or Umrah. If he is unable to offer the hady, he fasts three days during Hajj and seven days when he returns to his family. Whoever abandons a supererogatory act is not required to do anything.