महाभारतः mahābhārataḥ - book-3, chapter-80, verse-78

तस्मिंस्तीर्थवरे स्नात्वा शुचिः प्रयतमानसः ।
अग्निष्टोमातिरात्राभ्यां फलं प्राप्नोति मानवः ॥७८॥

78. tasmiṁstīrthavare snātvā śuciḥ prayatamānasaḥ ,
agniṣṭomātirātrābhyāṁ phalaṁ prāpnoti mānavaḥ.

78. tasmin tīrthavare snātvā śuciḥ prayatamānasaḥ
agniṣṭomātirātrābhyām phalam prāpnoti mānavaḥ

78. A human being (mānava), having bathed in that excellent sacred bathing place, becoming pure and with a controlled mind, attains the fruit of the Agniṣṭoma and Atirātra sacrifices.

Words meanings summery:

• तस्मिन् (tasmin) - in that, on that

• तीर्थवरे (tīrthavare) - in the excellent sacred bathing place

• स्नात्वा (snātvā) - having bathed

• शुचिः (śuciḥ) - pure, clean

• प्रयतमनसः (prayatamanasaḥ) - with a controlled mind, of restrained mind

• अग्निष्टोमातिरात्राभ्याम् (agniṣṭomātirātrābhyām) - of the Agniṣṭoma and Atirātra sacrifices

• फलम् (phalam) - fruit, result, reward

• प्राप्नोति (prāpnoti) - attains, obtains, reaches

• मानवः (mānavaḥ) - human being, man

Words meanings and morphology

तस्मिन् (tasmin) - in that, on that

(pronoun)

Locative, masculine, singular of tad

tad - that, he, she, it

Note: Agrees with 'tīrthavare'.

तीर्थवरे (tīrthavare) - in the excellent sacred bathing place

(noun)

Locative, neuter, singular of tīrthavara

tīrthavara - excellent sacred bathing place, best of sacred places

Compound type : tatpuruṣa (tīrtha+vara)

• tīrtha – sacred bathing place, holy place, ford
  noun (neuter)
  Root: tṛ (class 1)
• vara – best, excellent, boon
  adjective (masculine)
  Root: vṛ (class 9)

Note: Refers to Prabhāsa.

स्नात्वा (snātvā) - having bathed

(indeclinable)

Absolutive (gerund)

Formed with suffix -tvā.

Root: snā (class 2)

शुचिः (śuciḥ) - pure, clean

(adjective)

Nominative, masculine, singular of śuci

śuci - pure, bright, clean

Note: Qualifies 'mānavaḥ'.

प्रयतमनसः (prayatamanasaḥ) - with a controlled mind, of restrained mind

(adjective)

Nominative, masculine, singular of prayatamanasa

prayatamanasa - one whose mind is restrained/controlled

Compound type : bahuvrīhi (prayata+manas)

• prayata – controlled, restrained, striving
  adjective (masculine)
  Past Passive Participle
  Derived from root yam (to restrain) with upasarga pra-.
  Prefix: pra
  Root: yam (class 1)
• manas – mind, intellect, thought
  noun (neuter)
  Root: man (class 4)

Note: Qualifies 'mānavaḥ'.

अग्निष्टोमातिरात्राभ्याम् (agniṣṭomātirātrābhyām) - of the Agniṣṭoma and Atirātra sacrifices

(noun)

Instrumental, neuter, dual of agniṣṭomātirātra

agniṣṭomātirātra - the Agniṣṭoma and Atirātra sacrifices (types of Soma sacrifices)

Compound type : dvandva (agniṣṭoma+atirātra)

• agniṣṭoma – a type of Soma sacrifice
  noun (masculine)
• atirātra – a type of Soma sacrifice lasting more than one night
  noun (masculine)
  Prefix: ati
  Root: rā (class 2)

Note: Used to express 'the fruit of X' in instrumental in this context.

फलम् (phalam) - fruit, result, reward

(noun)

Accusative, neuter, singular of phala

phala - fruit, result, consequence, reward

Note: Object of 'prāpnoti'.

प्राप्नोति (prāpnoti) - attains, obtains, reaches

(verb)

3rd person , singular, active, present (laṭ) of prāp

Present Active

3rd person singular, present indicative, active voice. Root āp with upasarga pra-.

Prefix: pra

Root: āp (class 5)

मानवः (mānavaḥ) - human being, man

(noun)

Nominative, masculine, singular of mānava

mānava - human, son of Manu, descendant of Manu

Note: Subject of 'prāpnoti'.