Ok not sure completly what episode it was but it shows some of the reasons that Sesshomaru hates inuyasha. Numero Uno was supposed to be because he got tetsusaiga instead of him but it never explains why he was so poed bout it. ANyhooo while inuyasha was pinned to the tree His dad (Inutaisoo??)was supposidely in this fight against a great youkai (Didn't see the episode..)and sesshomaru was there to help him fight it however inuyasha couldn't come becuase he had been weak enough to be pinned to a tree by a miko. So sesshomaru thought htat inuyasha should have been there to help and to top it off he WAS there but he didnt get the sword with the most power.
Submitted by Ara