The System of the Vedanta according to Badarayana's Brahma-Sutras and Cankara's Commentary c10.s5.t2.3

c10.s5.t2.3

On the same grounds (because waiting is impossible, because the fruit of knowledge cannot be conditional, and because the time of death is not determined) we must assume, that the knower, even if he dies during the period when the days are decreasing, reaches the goal; and when the Smriti (Bhagavadgîtâ 8, 23 ff.) teaches that only those who die in the daytime and in the half-year in which the days increase, do not return, it is to be noted that this refers only to the followers of Yoga (above p. 19), and, since it rests only on the Smriti, this has no validity in a doctrine founded on the Çruti (p. 1108, 13).