菩薩從兜術天降神母胎說廣普經 1.30

1.30

世尊告曰：「云何彌勒！若空無形質，云何眾生有生、有老、有病、有死耶？」

The Bhagavat said: "How is it, Maitreya: if space has no physical form, how is it that sentient beings have birth, aging, illness, and death?"