We might, however, wish to limit the stricter definition of Vaishnava to those who pursue the path of suddha-bhakti, not knowingly mixing their theology with karma and jnana.
The following definitions of a Vaishnava are given by Sri Jiva Gosvami in his Bhakti-sandarbha:
The original verse (Anuccheda 202) is as follows:
ete hi vaiSNavAH santo mahattvena san-mAtratvena ca vibhidya nirdiSTAH | san-mAtra-bhede tAratamyaM cAtra yad aviviktaM tad-bhakti-bheda-nirUpaNe purato vivecanIyam | anye tu sva-