俱舍論記 9.76

9.76

"As the Holy One stated […] the stage when bodily form is complete": the reply. This clarifies the gradual growth through five stages within the womb: Kalala, translated here as harmonious union, or impure mixture, or coagulated slime; arbuda, translated here as blister; peśī, translated here as flesh; ghana, translated here as solid flesh; praśākhā, translated here as limbs and digits. The subsequent stage up to hair, nails, and so forth, until the physical sense faculties and bodily forms are complete, is collectively named the fifth stage. If according to the Sammatīya school, from hair and so forth onward constitutes the sixth stage. When this child in the womb dwells in the womb, it is like an arrow piercing the body, harming the mother; therefore it is called the arrow in the womb.