首楞嚴義疏注經 3.431

3.431

破土生，此正破也。前三句牒破，土若生空，土出井時，應見虛空出土入井。若土下四句結非，若見土出，不見空入，云何言空從土而有？

This refutes arising from soil; this is the direct refutation. The first three lines restate and refute: if soil generated space, then when the soil came out of the well, one should have seen space leave the soil and enter the well. The four lines from 'If the soil...' conclude the error: if one sees the soil come out but does not see space enter, how can one say space exists because of the soil?