大方便佛報恩經 6.117

6.117

問曰：「經說：『一佛出世，度九十那由他眾生入於泥洹。』何以言無數阿僧祇眾生耶？」

Question: “A sūtra says: ‘When one Buddha appears in the world, he delivers ninety nayutas of sentient beings into nirvāṇa.’ Why do you say countless asaṃkhyeyas of sentient beings?”