Rasarnava 11.52

11.52

catuḥṣaṣṭyaṃśake grāse daṇḍadhārī bhavedrasaḥ
jalaukāvaddvitīye ca grāsayoge sureśvari //

At a sixty-fourth part morsel, mercury becomes stick-shaped; / and like a leech at the second morsel administration, O sovereign of the gods;