Assalam alaikum Can u please tell me the conditions to sacrifice an animal on eid ul zuha according to syel al sistani thanks for serving

Ws, if sheep must be finish 6 month of age if goat must be finish 1 year and enter in 2nd year,if u have 2 choice select better animal of qurbani when u do zibha stomach of goat should be qila direction dont cut all head in one time