महाभारतः mahābhārataḥ - book-13, chapter-99, verse-13

यस्य वै शैशिरे काले तडागे सलिलं भवेत् ।
अग्निष्टोमस्य यज्ञस्य फलमाहुर्मनीषिणः ॥१३॥

13. yasya vai śaiśire kāle taḍāge salilaṁ bhavet ,
agniṣṭomasya yajñasya phalamāhurmanīṣiṇaḥ.

13. yasya vai śaiśire kāle taḍāge salilam bhavet
agniṣṭomasya yajñasya phalam āhuḥ manīṣiṇaḥ

13. vai manīṣiṇaḥ āhuḥ yasya taḍāge śaiśire kāle
salilam bhavet agniṣṭomasya yajñasya phalam

13. Indeed, the wise (manīṣiṇaḥ) declare that the person in whose pond water is present during the cold season attains the reward of the Agniṣṭoma (Vedic ritual (yajña)).

Words meanings summery:

• यस्य (yasya) - whose (referring to the person) (whose, of whom, of which)

• वै (vai) - verily (indeed, verily, surely)

• शैशिरे (śaiśire) - in the cold (winter) season (in the cold season, pertaining to winter)

• काले (kāle) - in the season (in the time, in the season)

• तडागे (taḍāge) - in the pond (in the pond, in the tank)

• सलिलम् (salilam) - water

• भवेत् (bhavet) - is present, exists (may be, should be, exists, let it be)

• अग्निष्टोमस्य (agniṣṭomasya) - of the Agniṣṭoma (Vedic ritual) (of the Agniṣṭoma)

• यज्ञस्य (yajñasya) - of the (Vedic ritual (yajña)) (of the Vedic ritual, of the sacrifice (yajña))

• फलम् (phalam) - reward (fruit, result, reward)

• आहुः (āhuḥ) - they declare (they say, they declare)

• मनीषिणः (manīṣiṇaḥ) - the wise (sages) (the wise ones, the sages, the discerning)

Words meanings and morphology

यस्य (yasya) - whose (referring to the person) (whose, of whom, of which)

(pronoun)

Genitive, masculine, singular of yad

yad - who, which, what

Note: Agreement with an implied 'person' (pum̐saḥ).

वै (vai) - verily (indeed, verily, surely)

(indeclinable)

शैशिरे (śaiśire) - in the cold (winter) season (in the cold season, pertaining to winter)

(adjective)

Locative, masculine, singular of śaiśira

śaiśira - relating to winter, cold season, winter

Derived from śiśira (cold season).

Note: Adjective modifying kāle.

काले (kāle) - in the season (in the time, in the season)

(noun)

Locative, masculine, singular of kāla

kāla - time, season

तडागे (taḍāge) - in the pond (in the pond, in the tank)

(noun)

Locative, masculine, singular of taḍāga

taḍāga - pond, tank, reservoir

सलिलम् (salilam) - water

(noun)

Nominative, neuter, singular of salila

salila - water

भवेत् (bhavet) - is present, exists (may be, should be, exists, let it be)

(verb)

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

Optative mood, 3rd person singular. Root bhū (1st conjugation, Parasmaipada).

Root: bhū (class 1)

अग्निष्टोमस्य (agniṣṭomasya) - of the Agniṣṭoma (Vedic ritual) (of the Agniṣṭoma)

(noun)

Genitive, masculine, singular of agniṣṭoma

agniṣṭoma - a particular form of soma (Vedic ritual), the chief type of Soma (Vedic ritual)

Compound. agni (fire) + stoma (praise/hymn/collection of mantras).

Compound type : tatpuruṣa (agni+stoma)

• agni – fire
  noun (masculine)
• stoma – praise, hymn, collection of mantras, a form of Soma sacrifice
  noun (masculine)

Note: Refers to the specific (Vedic ritual (yajña)).

यज्ञस्य (yajñasya) - of the (Vedic ritual (yajña)) (of the Vedic ritual, of the sacrifice (yajña))

(noun)

Genitive, masculine, singular of yajña

yajña - Vedic ritual, sacrifice, worship

Derived from root yaj (to worship, to sacrifice).

Root: yaj (class 1)

Note: This term is to be included in brackets in the translation.

फलम् (phalam) - reward (fruit, result, reward)

(noun)

Accusative, neuter, singular of phala

phala - fruit, result, consequence, reward

Note: Object of implied labhate (obtains) or subject of implied bhavati (is).

आहुः (āhuḥ) - they declare (they say, they declare)

(verb)

3rd person , plural, active, present (liṭ) of brū

Present indicative, 3rd person plural. Root brū (2nd conjugation, Parasmaipada), often irregular in some forms. āha is 3rd sing perfect, āhuḥ is 3rd plural perfect but used in present sense.

Root: brū (class 2)

Note: Perfect 3rd plural of brū, used in present sense.

मनीषिणः (manīṣiṇaḥ) - the wise (sages) (the wise ones, the sages, the discerning)

(noun)

Nominative, masculine, plural of manīṣin

manīṣin - wise, thoughtful, sagacious, discerning

Derived from manīṣā (wisdom, thought) + in suffix.

Note: Subject of āhuḥ.