金光明經文句記 6.157

6.157

二、「清淨」下一行半，具功德。清淨慈悲無量禪定久皆莊嚴，故髮好柔軟。

Second, the one and a half lines from "Pure" show that it possesses virtues. Pure compassion and immeasurable dhyāna-concentrations have long adorned it; hence the hair is handsome, soft, and gentle.