Rasarnavasudhakara 2.508

2.508

tulādhṛtatvam anayor na syāt prakaraṇādinā |
kavi-tātparya-viśrānter ekatraivāvalokanāt ||

Equipose between these two cannot exist, through the context and so forth,
because the resting point of the poet's intended purport is observed in one alone.