俱舍論頌疏論本 1.30

1.30

從此第二，依文正解者，將釋此頌，略為三分：一序分、二正宗、三流通。夫聖人造論，必有由致，故初明序分。序分既訖，當有所陳，故次明正宗。宗義已彰，勸物修學，故後有流通。

From here, the second part, direct explanation following the text: in preparing to explain these verses, [the text] is divided briefly into three sections: 1. the introductory section, 2. the main body, and 3. the dissemination section. Whenever sages compose a treatise, there must be an occasion; therefore, the introductory section is clarified first. The introductory section being concluded, there must be something expounded; therefore, the main body is clarified next. Once the central tenets are revealed, one encourages living beings to cultivate and study; therefore, there is the dissemination section at the end.