师得不劳 (師得不勞) shī dé bù láo

shī dé bù láo phrase avoiding toil for the soldiers
Domain: Literary Chinese 文言文
Notes: Quote: from the 漢書 “Book of Han”, volume 95 by 班固 Ban Gu 32-92 CE (Amies 2021 tr.; see also tr. Wylie 1880, p. 80)