History of Dharmashastra (Ancient and Mediaeval Religious and Civil Law in India) v6.c81.275.4

v6.c81.275.4

The reply is as a general rule the day on which the 2nd is combined with the 3rd tithi should be the proper one for the dvitīyāvrata and not the day on which 2nd tithi is combined with the first. Similarly, in the case of a vrata to be performed on tṛtīyā, if the 3rd tithi occurs on one civil day combined with the 2nd and on the next day it is combined with the 4th, then the proper day as a general rule for a tṛtīyā-vrata is the one on which the 2nd and 3rd tithis are in combination and not the other day on which the 3rd and 4th tithis combine. The result of this passage is that combinations of 1st and 2nd tithi, of the 3rd and 4th, of 5th and 6th, of 7th and 8th, of the 9th and 10th, of the 10th and 11th, of 12th and 13th, of 13th and 14th, of Pūrṇimā with the first and of Amāvāsyā with 14th are generally excluded as improper.¹⁹¹