俱舍論頌疏論本 24.57

24.57

有漏離次下者，謂諸有漏道唯能離次下一地染，謂猶依未至離欲界染，及依二禪離初禪染，乃至有頂離無所有處染，名次下地。不斷上地染，勢力劣故。不斷自染，自地煩惱所隨增故。更不斷下地染，謂已離故。

Regarding "The worldly [path] abandons the immediately lower [stage]," this means that any worldly path can only abandon the defilements of the one immediately lower stage. That is to say, relying on the threshold [concentration], it abandons the defilements of the desire realm; relying on the second dhyāna, it abandons the defilements of the first dhyāna; and so forth up to the peak of existence (bhavāgra), which abandons the defilements of the sphere of nothingness; thus it is called the immediately lower stage. It does not sever the defilements of higher stages because its power is inferior. It does not sever its own defilements because the afflictions of its own stage increase with it. Furthermore, it does not sever the defilements of lower stages because they have already been abandoned.