俱舍論疏 29.80

29.80

「論曰至為起因故」，述因力也。此於先時近者、近曾起者，及數修者，數數修故，即是近同類因。由此二因力故，生色、無色。雖無教力，而得生起。

"The treatise says ... because it serves as the cause of arising": this explains the power of causes. Here, with respect to what was recent in earlier times—that which was recently generated—and what was frequently cultivated, because it was repeatedly cultivated, this is a recent similar cause (sabhāgahetu). Through the power of these two causes, one is born in the form and formless realms; and even without the power of instruction, they are able to arise.