瑜伽論記 21.127

21.127

第八明化心有心無心義，心不可化，故佛化身無自依心。然依受用佛心，對緣利物，故云有依他心。

Eighth, clarifying the meaning of the presence or absence of mind in the emanated mind: mind cannot be emanated, hence the Buddha's emanation body (nirmāṇakāya) has no independently based mind. However, relying on the mind of the enjoyment Buddha, it responds to conditions and benefits beings, hence it is said to have a dependently based mind.