法苑珠林 11.52

11.52

又智度論云。如阿毘曇說。一時無二心者。若化佛語時。化主默然。若化主語時。化佛亦應默然。云何佛一時皆說六波羅蜜。

Furthermore, the Mahāprajñāpāramitā-śāstra states: According to the Abhidharma, two minds cannot exist simultaneously. If an emanation Buddha speaks, the master of the emanation remains silent; if the master of the emanation speaks, the emanation Buddha should likewise remain silent. How then could the Buddha and all [his emanations] simultaneously expound the six pāramitās?