首楞嚴義疏注經 8.191

8.191

「於同佛地地中，各各生清淨因，依因發揮取涅槃道，名隨順平等善根迴向。」

"Within the ground that is identical to the Buddha ground, each and every [bodhisattva] produces pure causes, and relying on these causes, flourishes and takes the path of nirvāṇa; this is called the dedication of merit of according with equal roots of goodness."