劉全進瓜 Liu Quan Presents the Melons
那劉全果服毒而死，一點魂靈，頂著瓜果，早到鬼門關上。把門的鬼使喝道：「你是甚人，敢來此處？」劉全道：「我奉大唐太宗皇帝欽差，特進瓜果與十代閻王受用的。」那鬼使欣然接引。劉全徑至森羅寶殿，見了閻王，將瓜果進上道：「奉唐王旨意，遠進瓜果，以謝十王寬宥之恩。」閻王大喜道：「好一個有信有德的太宗皇帝！」遂此收了瓜果。那刘全果服毒而死，一点魂灵，顶着瓜果，早到鬼门关上。把门的鬼使喝道：「你是甚人，敢来此处？」刘全道：「我奉大唐太宗皇帝钦差，特进瓜果与十代阎王受用的。」那鬼使欣然接引。刘全径至森罗宝殿，见了阎王，将瓜果进上道：「奉唐王旨意，远进瓜果，以谢十王宽宥之恩。」阎王大喜道：「好一个有信有德的太宗皇帝！」遂此收了瓜果。
逐句解 Line by line
Liu Quan did indeed take the poison and die, and his single wisp of a soul, balancing the melons and fruit upon its head, came at once to the Gate of Ghosts.
一點魂靈 is "a single dot of soul," the smallest unit the language allows. 頂著 uses zhe: still balancing them. 鬼門關 is the Gate of Ghosts the emperor came through earlier — and this time somebody is arriving on purpose.
The gate-keeping demon shouted, 'Who are you, that you dare come to this place?'
甚人 is shén rén, "what person" — a challenge, not a question.
Liu Quan said, 'I come by imperial commission of the Great Tang Emperor Taizong, expressly to present melons and fruit for the Ten Kings' enjoyment.'
欽差, qīn chāi, is an imperial commission, the word for an envoy sent by the emperor in person. Liu Quan is not a suicide; he is a courier with credentials. 受用 is to enjoy or partake of.
The demon gladly received and led him in.
接引 is to receive someone and show them in — a marked change of manner from the shout of two lines earlier, and produced entirely by the mention of the emperor's name.
Liu Quan went straight to the Hall of Judgment, and when he had seen King Yama, presented the melons and fruit, saying, 'By the Tang king's command I come from afar to present melons and fruit, in thanks for the Ten Kings' gracious clemency.'
寬宥 is lenience and pardon. 將 is jiāng.
King Yama, greatly pleased, said, 'What a faithful and virtuous Emperor Taizong!' — and thereupon accepted the melons and fruit.
有信有德 is to keep your word and have virtue — and 信, good faith, is the point. The emperor made a throwaway promise on his way out of hell, of the kind everyone treats as a figure of speech, and then sent the melons.
Liu Quan's arrival makes good the melon promise Taizong left with when he parted from the Ten Kings: a man has died expressly to carry pumpkins to hell.
The comic literalism of the errand — a soul balancing fruit on its head at the Gate of Ghosts — is answered by King Yama's entirely serious praise, because the emperor has kept a promise most people would have treated as a polite noise. Keeping your word, even to the dead, is quietly established here as a sovereign virtue.