商主(shāng zhŭ) “a merchant chief, a caravan leader”
not found at HD. 2.371.; not found at DK. 2.1053.; Lǐ Wéiqí 1999 : 38;
56c23.有一商主，将诸商人，齑持重宝，经过崄路，………(p)
K. 440.8.sārthavāha~; not found at Z. 129a22;