InuYasha Episode 144: Hosenki and the Final Shard
Episode 144 of 167 of InuYasha, aired March 1, 2004, 24 minutes. Available with English subtitles and dub where released.
Episode summary
Inuyasha searches for Myoga to figure out how to get to the border between this world and the next, and his father's grave, where the last shard of the sacred jewel may be hidden.