महाभारतः mahābhārataḥ - book-3, chapter-81, verse-138

उभयोर्हि नरः स्नात्वा गोसहस्रफलं लभेत् ।
दानं वाप्युपवासो वा सहस्रगुणितं भवेत् ॥१३८॥

138. ubhayorhi naraḥ snātvā gosahasraphalaṁ labhet ,
dānaṁ vāpyupavāso vā sahasraguṇitaṁ bhavet.

138. ubhayoḥ hi naraḥ snātvā gosahasraphalam labhet
dānam vā api upavāsaḥ vā sahasraguṇitam bhavet

138. Indeed, a man who bathes in both of them obtains the merit of donating a thousand cows. Any donation (dāna) or fast (upavāsa, a form of tapas) performed there becomes multiplied by a thousand.

Words meanings summery:

• उभयोः (ubhayoḥ) - in both (sacred places) (of both, in both)

• हि (hi) - indeed, surely, because

• नरः (naraḥ) - man

• स्नात्वा (snātvā) - having bathed

• गोसहस्रफलम् (gosahasraphalam) - the merit of donating a thousand cows (the fruit/result of a thousand cows)

• लभेत् (labhet) - should obtain, may obtain

• दानम् (dānam) - an act of giving (dāna) (donation, gift)

• वा (vā) - or

• अपि (api) - also, even

• उपवासः (upavāsaḥ) - a fast (upavāsa, a form of tapas) (fast, fasting)

• वा (vā) - or

• सहस्रगुणितम् (sahasraguṇitam) - multiplied by a thousand

• भवेत् (bhavet) - may be, should be, becomes

Words meanings and morphology

उभयोः (ubhayoḥ) - in both (sacred places) (of both, in both)

(pronoun)

masculine/neuter, dual of ubhaya

ubhaya - both

Note: Here used in locative sense, 'in both'.

हि (hi) - indeed, surely, because

(indeclinable)

Note: Emphatic particle.

नरः (naraḥ) - man

(noun)

Nominative, masculine, singular of nara

nara - man, human being, hero

स्नात्वा (snātvā) - having bathed

(indeclinable)

Absolutive (Gerund)

Derived from root snā with suffix -tvā

Root: snā (class 2)

गोसहस्रफलम् (gosahasraphalam) - the merit of donating a thousand cows (the fruit/result of a thousand cows)

(compound noun)

Compound type : ṣaṣṭhī tatpuruṣa (gosahasra+phala)

• go – cow, ox
  noun (feminine)
• sahasra – thousand
  noun (neuter)
• phala – fruit, result, merit
  noun (neuter)

लभेत् (labhet) - should obtain, may obtain

(verb)

3rd person , singular, active, optative (vidhi liṅ) of labh

Optative Mood, 3rd Person, Singular

Root: labh (class 1)

Note: Parasmaipada form.

दानम् (dānam) - an act of giving (dāna) (donation, gift)

(noun)

Nominative, neuter, singular of dāna

dāna - giving, gift, donation, liberality

action noun

Derived from root dā

Root: dā (class 3)

वा (vā) - or

(indeclinable)

अपि (api) - also, even

(indeclinable)

Note: Forms vāpy with preceding vā.

उपवासः (upavāsaḥ) - a fast (upavāsa, a form of tapas) (fast, fasting)

(noun)

Nominative, masculine, singular of upavāsa

upavāsa - fasting, residing near, dwelling

action noun

Derived from root vas (to dwell) with prefix upa

Prefix: upa

Root: vas (class 1)

वा (vā) - or

(indeclinable)

सहस्रगुणितम् (sahasraguṇitam) - multiplied by a thousand

(compound adjective)

Compound type : tṛtīyā tatpuruṣa (sahasra+guṇita)

• sahasra – thousand
  noun (neuter)
• guṇita – multiplied, enumerated
  adjective (masculine)
  Past Passive Participle
  Derived from root guṇ (to multiply)
  Root: guṇ (class 10)

Note: Agrees with dānam or upavāsaḥ.

भवेत् (bhavet) - may be, should be, becomes

(verb)

3rd person , singular, active, optative (vidhi liṅ) of bhū

Optative Mood, 3rd Person, Singular

Root: bhū (class 1)