三彌勒經疏 1.116

1.116

問：隨觀一相應滅罪，何故偏說白毫相光？答：諸功德所成故。謂《大集經》第三十七卷云「一切眾生三世功德，及聲聞緣覺所有功德，佛始成時成熟一毛孔功德。如是展轉三十二相聚集百倍，成如來眉間白毫相」故。滅九十億劫罪者，理實隨心勝劣多少不定，今隨機宜而說耳也。

Question: Since contemplating any one of the marks should extinguish sins, why is the light of the white ūrṇā mark singled out? Answer: Because it is accomplished through all merits. That is, fascicle thirty-seven of the *Mahāsaṃnipātasūtra* says, "The merits of all sentient beings throughout the three times and all the merits of śrāvakas and pratyekabuddhas ripen the merits of a single pore when the Buddha first attains [enlightenment]. In this manner, multiplying a hundredfold successively for the thirty-two marks, they form the Tathāgata's mark of the white ūrṇā between the eyebrows." As for extinguishing the sins of ninety billion kalpas, in truth it varies and is not fixed, depending on the superiority or inferiority of the mind; here it is spoken merely to accord with what is suitable for the faculties [of beings].