首楞嚴義疏注經 1.358

1.358

「若一體者，則汝以手挃一支時，四支應覺。若咸覺者，挃應無在。若挃有所，則汝一體自不能成。」

"If it is of one substance, then when you poke one limb with your hand, the four limbs should all feel it. If all feel it, the poke should have no specific location. If the poke has a location, then your 'one substance' naturally cannot be established."