Original
येन शब्दमयं सर्वं मुख्यवृत्त्या व्यवस्थितम् ।
शब्दरूपापरित्यागे परिणामाभिधानतः ॥ १३२ ॥yena śabdamayaṃ sarvaṃ mukhyavṛttyā vyavasthitam |
śabdarūpāparityāge pariṇāmābhidhānataḥ || 132 ||[It would be as asserted above] because all things (according to you) exist primarily in the eorm of sound; and if the sound-form is not abandoned, there can be no modification (evolution).—(132)
Kamalaśīla
‘Yena’ here stands for ‘yasmāt’, because,—you hold that primarily the World is of the nature of Sound.
The second line explains why it would be as asserted.—(132)