金剛般若經贊述 2.223

2.223

無著云，報、化有說，法身無說；若言法身有說如報、化者，即為謗法佛也。

Asaṅga says that the saṃbhogakāya and nirmāṇakāya have speech, while the dharmakāya has no speech; if one says that the dharmakāya has speech like the saṃbhogakāya and nirmāṇakāya, that is slandering the Dharma-Buddha.