俱舍論疏 11.121

11.121

論「隨彼諸天至所生男女」，明天男、女。雖是化生，即於彼天膝上生者，即是彼天男、女。女天為母，男天為父。

The Commentary states, "From 'According to those gods' up to 'the boys and girls born,'" explaining the sons and daughters of the gods. Although they are born of apparitional birth, those born on the knees of those devas are the sons and daughters of those devas. The female deva is the mother, and the male deva is the father.