Kaushitakagrihyasutra 3.13: atha trayodaśaḥ khaṇḍaḥ

Under the constellation Rohiṇī, one should have agricultural operations performed.

At the eastern boundary of the field, one should offer an offering to Heaven and Earth.

Having smeared a circular sacrificial ground with cow-dung, upon fresh kuśa grass with tips pointing eastward, one should offer water, saying, "Homage to Heaven and Earth."

In the same manner, [one offers] perfume, garlands, incense, and lamps;

or boiled rice with milk.

And the reverence is with: "Homage to Heaven and Earth, homage."

The strewing of sacrificial grass is not constant;

or there is an option according to tradition.

With its residue, one gladdens Brahmins.

At the first yoking of the plow, a Brahmin should touch the plow with: "Prosperous for us the plowshares..."

One should recite the hymn: "With the Lord of the Field..."

Having omitted what has been ploughed,

when about to cross water, one performs a rite for safe travel.

One pours three handfuls of water into the water,

having muttered: "Homage to the Ocean, the guide; homage to Varuṇa; homage to the son of Varuṇa, the lord of law; homage, homage to the father of all rivers, to Viśvakarman! May he enjoy the mortal oblation."

Against the current in the case of flowing [waters]; northward in the case of standing [waters].

If while crossing he should fear danger, he should mutter the Vāsiṣṭha hymn, "Whose eldest is the ocean..." as a raft.