It is assumed by Ashuku Nyorai (Immovable Buddha) or Tenkuraion Nyorai (or Divyadundubhimeganirghosa, literally, Buddha of Thunderous Sound of the Heavenly Drum) besides Shakyamuni Nyorai.
釈迦如来のほか、阿しゅく如来や天鼓雷音如来が結ぶ。