Jainism ke anusar, jab koi Tirthankar ya Arihant ko Keval Gyan (omniscience) prapt hota hai, to ve turant hi deshna (divya updesh) dena prarambh kar dete hain. Isse "16 prahar ki deshna" kaha jata hai. Ek din me 8 prahar hote hain, to 16 prahar ka arth hai 2 din.

Jab Tirthankar ko Keval Gyan hota hai, tab ve lagatar 2 din (arthaat 16 prahar) tak apni divya dhvani dwara deshna dete hain.

Iska uttar hai: 2 din.