梵網經菩薩戒本疏 5.44

5.44

六、輕重者，約境所畜有多少勝劣，約心情有剋漫，約事擬用不用，單合皆輕重之義，准思可知也。

Sixth, relative severity: regarding the object, there is greater or lesser quantity, superior and inferior [forms] among what is kept; regarding mental attitude, there is specific intent or general intent; regarding the action, there is intention to use or not to use. Singly or combined, these all carry the meaning of light and heavy; this can be understood by considering them accordingly.