Madhvaon Brahma Sūtra 4.2.19
Dvaita Vedānta
Sūtra
निशि नेति चेन्न संबन्धात्
niśi neti cenna saṃbandhāt
Sūtra translation
If itbesaid that there being no rays (of the sun) during the night, (the departing of the wise by that light) it not possible (in all eases), this objection is to be overruled; for (there always exists) the connection of the rays.
(It may be said that) the rays of the sun being absent during the night, the departing of the wise, as described, cannot take place; (for possibly the life of a certain in- dividual may be brought to a close at some dark hour of the night.) But this objection is rejected as not valid; for the connection of the rays (intended here) does always exist. How long ?