大乘百法明門論疏 1.9

1.9

解云：「自下第二、依經起問。既引聖言『諸法無我』，未知何者是一切法？云何為無我？」

The commentary states: "Below is the second: raising questions based on the sūtra. Having cited the sacred words, 'All dharmas are without self', it is not yet known what constitutes 'all dharmas', and what is meant by 'without self'?"