大般涅槃經集解 53.56

53.56

案僧亮曰：空者，便承聞為難異物本無具。難醎物本無醎性，而使作醎者，非空則為倒也。若唯空，復無所見，更成前難也。

Sengliang states: One who takes it as empty immediately relies on what was heard to raise an objection about something being fundamentally devoid of that quality. Objecting that a salty substance fundamentally lacks a salty nature, yet is made salty—if it is not empty, it is an inversion. If it is purely empty, there is again nothing to be seen, which further constitutes the previous objection.