Book 11: 《先進》 Xian Jin (Former Eras)
《先進》 Passage 11.15
子曰：「由之瑟奚為於丘之門？」門人不敬子路。子曰：「由也升堂矣，未入於室也。」
Legge Translation (1861)
The Master said: "What has the lute of Yu to do in my door?"The other disciples began not to respect Zilu. The Master said: "Yu has ascended to the hall, though he has not yet passed into the inner apartments."