Paithinasidharmasutra 5: Śrāddhaṃ kālaś ca

In both fortnights, the lunar days pierce the previous and subsequent lunar day / by three muhūrtas; this is recorded as a general rule.

In both fortnights the lunar days overlap the preceding and the following lunar day by three muhūrtas; this is the general rule.

The fifth, seventh, tenth, and thirteenth, / the first and ninth lunar days should be observed when facing [the next].

The fifth, seventh, tenth, thirteenth, first and ninth lunar days are to be kept as 'facing' (joined to the following day).

In a month devoid of a solar transit, he may or may not perform the first-fruits offering.

In a month without a solar transit one may or may not perform the first-fruits rite.

A wife may perform a vow for her husband, and a husband a vow for his wife; / when they are incapable, no breach of vow occurs on account of the other.

A wife may keep her husband's vow and a husband his wife's; if both are unable, another (may keep it) for them, and the vow is not broken.

In chewing betel, sexual intercourse with a woman, and the consumption of meat, / no lapse of a vow occurs, provided he avoids the black pepper and ginger.

(On a vow-day) chewing betel, intercourse and eating meat break the vow …

For those who died in an intercalary month, the annual ancestral rite / should be performed only in the intercalary month, but under no circumstances for others.

The annual śrāddha of those who died in an intercalary month is to be performed in an intercalary month; for others never.

All Vedic and customary rites are declared to be in the twelfth month; / but in the thirteenth, they are all fruitless.

All Vedic and smārta rites are prescribed for the twelve months; in the thirteenth they are all fruitless.

He who, having taken [food] from the cooking meant for the ancestors, performs the offering to all the gods, / that ancestral rite becomes demonic; it does not reach the ancestors.

When one takes from the food cooked for the ancestors and makes the offering to all the gods with it, that śrāddha becomes demonic and does not reach the ancestors.

The fathers are the Vasus, the grandfathers are the Rudras, the great-grandfathers are the Ādityas. The knowing one who thus sacrifices to the ancestors—the Vasus, the Rudras, and the Ādityas become pleased with him.

The fathers are the Vasus, the grandfathers the Rudras, the great-grandfathers the Ādityas; for one who knowing this sacrifices to the ancestors, the Vasus, Rudras and Ādityas are pleased.

When a woman has died sonless, the husband should perform the sapiṇḍa rite; / her sapiṇḍīkaraṇa should be performed together with the mother-in-law and the rest.

When a sonless wife dies, the husband should perform her sapiṇḍīkaraṇa; it is to be done together with her mother-in-law and the others.

Those sixteen ancestral rites that precede the sapiṇḍīkaraṇa, / he should indeed perform those ancestral rites according to the rule for a single deceased.

The sixteen śrāddhas before the sapiṇḍīkaraṇa are to be performed by the rule of the single-person śrāddha.

Without having offered the sixteen ancestral rites, he should not perform the sapiṇḍana.

Without giving the sixteen śrāddhas one should not perform the sapiṇḍana.

The six-monthly and annual ancestral rites should be on the preceding day; / the monthly ones, however, on their own day or on the twelfth.

The six-monthly and the yearly śrāddhas are to be on the preceding day; the monthly ones on their own day or on the twelfth.

The rites of the ball of rice and water for the ghost must be performed only in the first [intercalary/lunar] month; / but one who performs them in an intercalary month incurs corpse-impurity once again.

The rice-balls and water for the departed are to be offered in the first lunar month; one who does them in the second incurs death-impurity again.

The dismissal is at the end of the year; according to some, in the ninth month.

The dismissal (sapiṇḍīkaraṇa) at the end of the year; in the ninth month, say some.

During birth-impurity, having poured out a handful of water with the Sāvitrī [verse] and walked around sunwise, one should bow to the Sun. That much is to be done.

During birth-impurity he should cast a handful of water with the Sāvitrī, circumambulate and bow to the sun; that much is to be done.