注維摩詰經 2.204

2.204

什曰：始觀時係心一處名為止，靜極則明，明即慧，慧名觀也。肇曰：止定觀慧。

[Kumāra]jīva says: When beginning contemplation, tying the mind to one place is called śamatha (calm abiding). When stillness reaches its culmination, there is illumination; illumination is wisdom, and wisdom is called vipaśyanā (discernment).
[Seng]zhao says: Śamatha is concentration, and vipaśyanā is wisdom.