說無垢稱經疏 2.208

2.208

經　修三十七（至）來生其國。

Sūtra: Cultivating the thirty-seven [factors of awakening leads to those beings arriving at liberation upon attaining buddhahood; those who practice the foundations of mindfulness, correct abandonments, bases of psychic power, faculties, powers, factors of awakening, and noble path] come to be born in that land.