俱舍論記 9.33

9.33

「尊者世友言至便數死數生」者，第二師說：若生緣未合，極經七日，數死數生。

[On the passage] 'The Venerable Vasumitra says... they repeatedly die and are repeatedly born': this is the second master's view. If the conditions for birth have not converged, it lasts at most seven days, repeatedly dying and repeatedly being born.