《新唐书·列传·卷一百四十三》
节度使郑从谠闭塞石岭关，不得通，克用走小路到太原，扎营城下五天，要求资助钱粮，从谠不答，于是大打出手，回代州留驻。
节度使郑从谠塞石岭关，不得前，克用儳道至太原，营城下五日，邀粮赀，从谠不答，乃大略，还屯代州。
The Circuit Governor Zheng Congxun closed the Shiling Pass and refused to let him through, so Keyong took the small roads to Taiyuan, camping outside the city for five days, requesting money and food, but Congxun did not reply, so he attacked and returned to Daizhou.