Garudapurana 1.209.29

1.209.29

rasarudraiḥ śikhariṇī yamau nasabhalā guruḥ /
vasugrayatiḥ pṛthvī jasau jasayalā guruḥ //

Śikhariṇī has ya, ma, na, sa, bha, a light and a heavy syllable, with [pause at] six and eleven. / Pṛthvī has ja, sa, ja, sa, ya, a light and a heavy syllable, with a pause at eight and nine.