佛說佛名經 1.51

1.51

「第四發菩提心者，經言：『當樂佛身，佛身者即法身也。從無量功德智慧生，從六波羅蜜生，從慈悲喜捨生，從三十七助菩提法生，從如是等種種功德智慧生如來身。』欲得此身者，當發菩提心，求一切種智常樂我淨薩婆若果，淨佛國土成就眾生，於身命財無所悋惜。

"Fourth, as for arousing the aspiration for bodhi: the sūtra says: 'One should delight in the Buddha's body. The Buddha's body is the dharmakāya. It is born from immeasurable merit and wisdom, born from the six pāramitās, born from benevolence, compassion, sympathetic joy, and equanimity, born from the thirty-seven factors aiding bodhi; from such manifold merits and wisdom is the Tathāgata's body produced.' Those who wish to obtain this body should arouse the aspiration for bodhi, seek the sarvajñā-fruit of omniscience which is permanent, blissful, self, and pure, purify the Buddha lands, mature sentient beings, and begrudge neither body, life, nor wealth.