俱舍論記 21.67

21.67

「謂奢摩他」者，答。奢摩他，此云定。由此定故，掉舉及悔而不得生。問：何故前言惛、眠非食謂光明想，不言毘鉢舍耶？掉、悔非食言奢摩他，不言黑闇？解云：非食有多種，各隨舉一，或影略互顯。

"It refers to śamatha": this is the answer. Śamatha is translated here as samādhi. Due to this samādhi, auddhatya and remorse are unable to arise. Question: Why was it said earlier that the non-nutriment of styāna and drowsiness is the perception of light, and not vipaśyanā; while the non-nutriment of auddhatya and remorse was stated as śamatha, and not darkness? The explanation is: Non-nutriment is of many kinds; each [instance] adduces one respectively, or they imply and mutually illumine each other.