俱舍論記 30.31

30.31

「復以何緣至有等四邪」者，犢子部問。復以何緣世尊不記如來死後有、非有、亦有亦非有、非有非非有等四句耶？

Regarding 'For what reason again [did he not declare the four propositions concerning whether] the Tathāgata exists after death and so forth?': the Vātsīputrīya asks. For what reason again did the World-Honoured One not declare the four propositions concerning whether the Tathāgata after death exists, does not exist, both exists and does not exist, or neither exists nor does not exist?