Garudapurana 1.209.27

1.209.27

elā sayau nanau yaḥsyāccitralekhāsvarāṣṭakaiḥ /
marau mayau yaśca bhavedukteyamati śarkarī //

Elā has sa, ya, na, na, and ya; Citralekhā has [a pause at] seven and eight / and has ma, ra, ma, ya, and ya; this is declared as Atiśarkarī.