大乘起信論裂網疏 6.115

6.115

此即佛道無上誓願成也。同一切眾生皆成佛道，非願獨成佛故。二弘願觀竟。

This is the vow to accomplish the unsurpassed Buddha path. It is accomplishing the Buddha path together with all sentient beings, not wishing to become a Buddha alone. The second part, the contemplation of the great vows, is concluded.