淨名經集解關中疏 2.503

2.503

'Why is this? The bodhi of all Buddhas is born from this, and the mark of bodhi cannot be measured. For this reason, the merit cannot be measured.' Fourth, explaining the reason for its superiority. The Buddhas are born from the sūtra; the merit of offering to the Buddha is already great, how much more so offering to and seeking the root of the sūtra! Sengzhao says: 'Tall trees must arise from heaped soil; fine jade must emerge from the cliffs of Jing. Therefore, an immeasurable fruit must stem from an immeasurable cause. The bodhi of all Buddhas is born from practicing this sūtra, and the path of bodhi takes signlessness as its mark. The mark of signlessness cannot be measured. Since merit is generated from this, how could that merit be measured?'