俱舍論頌疏論本 23.36

23.36

捨已得非先者，捨煗等已，後重修得，所得必非先所捨者，唯得先未得者，以煗等善未曾熟修，要大加行方修得故，故得未曾得者，不得先所捨也。若先煗等經生故捨，遇了分位善說法師，便生頂等。若不遇者，還從煗修得。

[As for] "Having relinquished, what is acquired is not the former": after relinquishing Heat and the rest, when one later cultivates and attains them again, that which is attained is definitely not what was formerly relinquished; one attains only what was not previously attained. Because the good of Heat and the rest has never been fully cultivated, requiring great preparation before it is cultivated and attained, one therefore attains what has not been attained before and does not attain what was formerly relinquished. If Heat and the rest were formerly relinquished due to passing through another life, upon meeting a skilled teacher of the Dharma who clearly understands the stages, one immediately gives rise to Summits and the rest. If one does not meet [such a teacher], one cultivates and attains them beginning anew from Heat.