俱舍論記 3.103

3.103

「契經中說至男身為梵」者，外答。如契經說：必無有處，必無容有女身為梵。然有處所，然約容有男身為梵。

Regarding "It is stated in a sūtra ... being a male body as a Brahmā": the opponent answers. As stated in a sūtra: There is definitely no circumstance, no possibility, of a female body being a Brahmā. Yet there is a circumstance, there is the possibility, of a male body being a Brahmā.