大乘起信論裂網疏 6.118

6.118

此即以行填願也。自他本自不二，由於顛倒分別，妄見有殊。今既隨順真如法性，依四諦觀而發四弘，故於一切時中，隨己堪能，或修自利之行，能為眾生作增長緣，即是利他；或修利他之行，能破自心顛倒煩惱，即是自利。乃至一行、一住、一坐、一臥，苟可自利利他則應作之，苟不可以自利利他則不應作。設使自雖有益，能令人損；或雖有益他人，自墮名利，皆亦不應作也。發菩提心者，最宜勤加觀察。二釋觀竟。

This is fulfilling vows through practice. Self and other are fundamentally non-dual; due to inverted discriminations, one falsely sees them as distinct. Now, having complied with the tathatā dharmatā and given rise to the four great vows based on the contemplation of the four truths, at all times, according to one's capability, either cultivating practices that benefit oneself can serve as a condition for the growth of sentient beings, which is benefiting others; or cultivating practices that benefit others can destroy the inverted afflictions of one's own mind, which is benefiting oneself. Even down to a single act of walking, standing, sitting, or lying down, if it can benefit oneself and benefit others, it should be done; if it cannot benefit oneself and benefit others, it should not be done. Supposing that although it benefits oneself, it causes harm to others; or although it benefits others, oneself falls into fame and gain—all these likewise should not be done. Those who give rise to the bodhicitta should most diligently examine this. The second part, explaining special insight, is concluded.