When it is held at the ministry bulding, a portion of seven ken (about 12.74m) west of the building is to be used, and a portion of two ken (about 3.64m) to the north side will be named daishi no tsubone (room for daishi).
官庁にて行はるる時は、西庁七茵間をもて、北二間をば大師の局と名づく。