佛說佛名經 30.33

30.33

At that time, Bodhisattva Śraddhāvanto-lakṣaṇa addressed the Buddha, saying: "Now there are various kinds of hell beings, hungry ghosts, animals, male and female slaves, poor and rich, noble and base. I only pray that the World-Honoured One will fully expound upon them. Whenever sentient beings hear the Buddha preach the Dharma, it is like a child finding its mother, like the sick finding a physician, like the naked receiving clothing, and like the dark receiving a lamp; the World-Honoured One's preaching of the Dharma to benefit sentient beings is also like this."