收寶安齋 全虧大聖 Gathering the Spoils; All Owing to the Great Sage
教沙僧將洞內寶物收了。且尋米糧，安排齋飯，管待了師父。那長老得性命，全虧孫大聖；取真經，只靠美猴精。教沙僧将洞内宝物收了。且寻米粮，安排斋饭，管待了师父。那长老得性命，全亏孙大圣；取真经，只靠美猴精。
逐句解 Line by line
He bade Sha Monk gather up the treasures within the cave.
教 is jiào, to tell somebody to do a thing - not the jiāo of teaching a thing to somebody.
They sought out rice and grain, prepared a vegetarian meal, and served their master.
They cook the demons' own rice into a meatless meal for the master. 齋飯 is that meal; 管待 is the everyday word for waiting on a guest.
That the elder kept his life was wholly owing to the Great Sage Sun;
得 here is the full verb dé, to come by - he came by his life. This line and the next close the episode as a matched pair, and the match is between 大聖 and 猴精.
for the fetching of the true scriptures rests on none but the Handsome Monkey Spirit.
The last word of the episode is a nickname. 美猴精, the Handsome Monkey Spirit, plays on 美猴王, the Handsome Monkey King he was before any of this started - so this closing couplet, a matched pair of lines, hands the entire scripture-quest to him and does it in his oldest voice.
A four-line coda closes the Red Boy affair: the treasures gathered, the demons' stores turned into the master's dinner, and the credit assigned.
The last two lines run five characters against five and rhyme, which is verse by any ear - but the edition prints no cue phrase in front of them, and the house rule for this text follows the printer rather than the metre. Verse marking is reserved for set-pieces the edition announces (但見, 好風, 這正是), so these two lines stay set as prose. It is a genuinely borderline case and worth knowing about.