《宋史·列传·卷二百一十》
张德润用轿子抬着程聪返归，告诉他说： 你儿子程鹏飞任参政了，你可以日夜与他相聚。 程聪说 ：我被捉，他投降，不是我的儿子。 
德润以肩舆载聪归，语之曰： 若子鹏飞为参政矣，旦晚可会聚也。 聪曰： 我执彼降，非吾子也。 
Zhang Derun used a sedan chair to take Cheng Cong back and told him: Your son Cheng Pengfei has been appointed as a councilor, and you can meet him day and night. Cheng Cong said: I was caught, he surrendered, and he is not my son.