俱舍論頌疏論本 27.106

27.106

如所依定得者，如得初禪定，必得初禪化，乃至得第四禪定，必得第四定化，以果化心與所依定俱時得故。

Regarding "acquired according to the absorption that is their basis": just as when one acquires the concentration of the first dhyāna, one necessarily acquires the apparitions of the first dhyāna, up to when one acquires the concentration of the fourth dhyāna, one necessarily acquires the apparitions of the fourth dhyāna, because the fruit apparition-mind and the absorption that is its basis are acquired simultaneously.