成唯識論述記 4.272

4.272

The Commentary states: If all phenomena are non-existent, a bodhisattva should not give rise to great compassion, abandon saṃsāra, and accumulate the provisions of bodhi. What wise person, in order to eliminate an illusory enemy, would seek the sons of a barren woman to serve as an army and together destroy the enemy? Only when thieves exist does one seek provisions and seek to cut them off.