大方廣佛華嚴經隨疏演義鈔 89.33

89.33

疏三十一「娑（入聲）麼」，會經可知。《智論》云「若聞濕淼字，即知諸法堅牢如金剛石義，以阿濕淼此言石故。」釋曰：意明專念堅牢，我心匪石不可轉也，亦不可得。

In the commentary on the thirty-first [syllable], 'sma' (娑麼, entering tone), its correlation with the sūtra can be known. The Mahāprajñāpāramitopadeśa states: 'If one hears the syllable śma (濕淼), one immediately knows the meaning that all phenomena are solid and firm like vajra stone, because aśman (阿濕淼) here means stone.' The explanation says: The intended meaning clarifies that single-minded mindfulness is solid and firm; my mind is not a stone, it cannot be rolled away—and it is also ungraspable.