大乘入道次第開決 1.86

1.86

發心菩薩住乾慧地者。即十住位慧多定少。慧少定水名之乾慧。

Regarding “the bodhisattva who has generated the [bodhi] mind dwells on the stage of dry wisdom”: this refers to the stage of the ten abodes, where wisdom is abundant and samādhi is deficient. Having little water of samādhi, wisdom is called “dry wisdom.”