法華玄義釋籤 2.54

2.54

The convergence of the other destinies into the real is sometimes present in various sūtras, but for the two vehicles it is completely absent. Therefore, combining bodhisattvas to contrast with the two vehicles is spoken from the perspective of what is difficult. The explanation, based on exhausting the principle, must discuss nine, so as to cut off these doubts and give rise to faith in the one vehicle.