俱舍論頌疏論本 7.53

7.53

"The twelve become twenty:
namely, the wholesome minds of the three realms
are divided into applied and innate;
the unimpeded of the desire realm is divided into four:
maturation, the paths of deportment,
the fields of craft, and the fruit of supernormal power;
the form realm excludes craft;
the remaining numbers are as explained before."