Atharva Veda 3.30

sahṛdayaṃ sāṃmanasyam avidveṣaṃ kṛṇomi vaḥ anyo anyam abhi haryata vatsaṃ jātam ivāghnyā

For concord

Like-heartedness, like-mindedness, non-hostility do I make for you; do ye show affection (hary) the one toward the other, as the inviolable [cow] toward her calf when born.

anuvrataḥ pituḥ putro mātrā bhavatu saṃmanāḥ jāyā patye madhumatīṃ vācaṃ vadatu śantivām

Be the son submissive to the father, like-minded with the mother; let the wife to the husband speak words (vā́c) full of honey, wealful.

mā bhrātā bhrātaraṃ dvikṣan mā svasāram uta svasā samyañcaḥ savratā bhūtvā vācaṃ vadata bhadrayā

Let not brother hate brother, nor sister sister; becoming accordant (samyáñc), of like courses, speak ye words auspiciously (bhadráyā).

yena devā na viyanti no ca vidviṣate mithaḥ tat kṛṇmo brahma vo gṛhe saṃjñānaṃ puruṣebhyaḥ

That incantation in virtue of which the gods do not go apart, nor hate one another mutually, we perform in your house, concord for [your] men (púruṣa).

jyāyasvantaś cittino mā vi yauṣṭa saṃrādhayantaḥ sadhurāś carantaḥ anyo anyasmai valgu vadanta eta sadhrīcīnān vaḥ saṃmanasas kṛṇomi

Having superiors (jyā́yasvant), intentful, be ye not divided, accomplishing together, moving on with joint labor (sádhura); come hither speaking what is agreeable one to another; I make you united (sadhrīcī́na), like-minded.

samānī prapā saha vo 'nnabhāgaḥ samāne yoktre saha vo yunajmi samyañco 'gniṃ saparyatārā nābhim ivābhitaḥ

Your drinking (prapā́) [be] the same, in common your share of food; in the same harness (yóktra) do I join ⌊yuj⌋ you together; worship ye Agni united, like spokes about a nave.

sadhrīcīnān vaḥ saṃmanasas kṛṇomy ekaśnuṣṭīnt saṃvananena sarvān devā ivāmṛtaṃ rakṣamāṇāḥ sāyaṃprātaḥ saumanaso vo astu

United, like-minded I make you, of one bunch, all of you, by [my] conciliation; [be] like the gods defending immortality (amṛ́ta); late and early be well-willing yours.