大方廣佛華嚴經隨疏演義鈔 89.27

89.27

In the commentary on the twenty-fifth [syllable], 'kṣa' (叉, pronounced chǔ-wǒ), another translation has the syllable 'whirlpool' (xuanfu). If correlated with the sūtra, the deep and vast ocean of karma contains everything; it is not unconditioned and ultimately must be exhausted. The Mahāprajñāpāramitopadeśa states: 'If one hears the syllable kṣa, one then knows that the exhaustion of all phenomena is ungraspable, because kṣaya (叉耶) here means exhaustion.'