楊戩赴夾龍山,調(diào)查土行孫背景。路逢龍吉公主。龍吉公主乃昊天上帝親女,瑤池金母所生,只因那年蟠桃會(huì),該她奉酒,有失規(guī)矩,誤犯清戒,將之謫貶鳳凰山青鸞斗闕。龍吉指示楊戩去請(qǐng)懼留孫出山,可降服土行孫。楊戩去夾龍山途中,收了金毛童子為徒,還得了三尖兩刃刀,讓二童子先赴西岐。楊戩到了夾龍山,將懼留孫請(qǐng)至西岐。次日,姜尚出馬,把土行孫誘出商營(yíng),懼留孫隱身周營(yíng),把土行孫擒了。姜尚欲斬之,懼留孫說(shuō)留土行孫對(duì)西岐有用,并說(shuō)土行孫與鄧嬋玉有姻緣,姜尚遂派散宜生赴商營(yíng)勸降鄧九公。