《资治通鉴·唐纪·唐纪五十三》
从此，每当灵盐遇有战事，便让沙陀兵马参战，无论打到哪里，无不取得胜利，灵盐的军队愈发强盛起来了。
自是，灵盐每有征讨，用之所向皆捷，灵盐军益强。
Since then, whenever Ling Yan had a war, the soldiers and horses of Sha Tuo were allowed to participate in the war. No matter where they fought, they would always win, and the army of Ling Yan became stronger and stronger.