首楞嚴義疏注經 7.6

7.6

「若有宿習不能滅除，汝教是人一心誦我佛頂光明摩訶薩怛多般怛羅無上神呪。斯是如來無見頂相，無為心佛從頂發輝，坐寶蓮華所說心呪。」

"If there are past habituations that cannot be eradicated, you should teach this person to recite with single mind my unexcelled divine mantra of the Mahā-sitātapatra radiance of the Buddha-crest. This is the heart-mantra spoken by the unconditioned mental Buddha seated upon the precious lotus flower, emanating radiance from the crown of the Tathāgata's invisible uṣṇīṣa."