Rāmānujaon Brahma Sūtra 2.2.13
Viśiṣṭādvaita Vedānta
Sūtra
नित्यमेव च भावात्
nityameva ca bhāvāt
Sūtra translation
And because (the world also) would thus be eternal.
The samavâya is a relation, and if that relation is eternal that to which the relation belongs must also be eternal, so that we would arrive at the unacceptable conclusion that the world is eternal.