坐禪三昧經 2.70

2.70

「是慈三昧略說有三種緣：生緣、法緣、無緣。諸未得道，是名生緣。阿羅漢辟支佛，是名法緣。諸佛世尊，是名無緣，是故略說慈三昧門。」

"To explain briefly, this maitrī samādhi has three kinds of conditions: conditioned by sentient beings, conditioned by dharmas, and unconditioned. For those who have not yet attained the Path, it is called 'conditioned by sentient beings'. For arhats and pratyekabuddhas, it is called 'conditioned by dharmas'. For the Buddhas, the World-Honoured Ones, it is called 'unconditioned'. Therefore the approach of maitrī samādhi is briefly explained."