大方廣佛華嚴經隨疏演義鈔 60.81

60.81

疏「依不捨自乘」者，謂所住大乘之法堅心不動，此句是總。下「及前十」者，即前地十不捨淨戒方得定故。

Regarding the phrase "Relying on not abandoning one's own vehicle": this means that one's mind is firm and immovable regarding the Great Vehicle Dharma in which one abides; this phrase is general. Below, "and the preceding ten" refers to the preceding stage's ten [minds] of not abandoning pure precepts, for only then does one attain concentration.