महाभारतः mahābhārataḥ - book-13, chapter-99, verse-10

वर्षमात्रे तडागे तु सलिलं यस्य तिष्ठति ।
अग्निहोत्रफलं तस्य फलमाहुर्मनीषिणः ॥१०॥

10. varṣamātre taḍāge tu salilaṁ yasya tiṣṭhati ,
agnihotraphalaṁ tasya phalamāhurmanīṣiṇaḥ.

10. varṣamātre taḍāge tu salilam yasya tiṣṭhati
agnihotraphalam tasya phalam āhuḥ manīṣiṇaḥ

10. varṣamātre taḍāge tu salilam yasya tiṣṭhati
agnihotraphalam tasya phalam āhuḥ manīṣiṇaḥ

10. If water remains present in a pond for a full year, the wise (manīṣiṇas) declare that the merit gained from it is equivalent to the reward of a Vedic fire ritual (agnihotra).

Words meanings summery:

• वर्षमात्रे (varṣamātre) - in a pond that is a year-old (or has water for a year) (in a year-long, a year-old)

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

• तु (tu) - indeed, but, moreover

• सलिलम् (salilam) - water

• यस्य (yasya) - of which (pond) (whose, of which (masculine/neuter singular))

• तिष्ठति (tiṣṭhati) - remains, stands, stays

• अग्निहोत्रफलम् (agnihotraphalam) - the fruit/result of agnihotra

• तस्य (tasya) - of that (pond) or of its builder (his, of him, of it (masculine/neuter singular))

• फलम् (phalam) - fruit, result, reward

• आहुः (āhuḥ) - they say, they declare

• मनीषिणः (manīṣiṇaḥ) - the wise ones, thoughtful persons

Words meanings and morphology

वर्षमात्रे (varṣamātre) - in a pond that is a year-old (or has water for a year) (in a year-long, a year-old)

(adjective)

Locative, neuter, singular of varṣamātra

varṣamātra - of the measure of a year, lasting a year, a year old

Compound type : tatpuruṣa (varṣa+mātra)

• varṣa – year, rain
  noun (neuter)
• mātra – measure, extent, only, mere
  noun/adjective (neuter)

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

(noun)

Locative, neuter, singular of taḍāga

taḍāga - pond, reservoir, tank

तु (tu) - indeed, but, moreover

(indeclinable)

सलिलम् (salilam) - water

(noun)

Nominative, neuter, singular of salila

salila - water

यस्य (yasya) - of which (pond) (whose, of which (masculine/neuter singular))

(pronoun)

Genitive, neuter, singular of yad

yad - which, what

तिष्ठति (tiṣṭhati) - remains, stands, stays

(verb)

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

Root: sthā (class 1)

अग्निहोत्रफलम् (agnihotraphalam) - the fruit/result of agnihotra

(noun)

Nominative, neuter, singular of agnihotraphala

agnihotraphala - the fruit/result of agnihotra (a Vedic fire ritual)

Compound type : tatpuruṣa (agnihotra+phala)

• agnihotra – agnihotra (a Vedic fire ritual)
  noun (neuter)
• phala – fruit, result, reward
  noun (neuter)

तस्य (tasya) - of that (pond) or of its builder (his, of him, of it (masculine/neuter singular))

(pronoun)

Genitive, neuter, singular of tad

tad - that, it

फलम् (phalam) - fruit, result, reward

(noun)

Nominative, neuter, singular of phala

phala - fruit, result, reward, consequence

आहुः (āhuḥ) - they say, they declare

(verb)

3rd person , plural, active, perfect (liṭ) of ah

Irregular perfect tense form (often used with present meaning)

Root: brū/ah (class 2)

Note: Although traditionally a perfect tense form, often used with a present meaning ('they say').

मनीषिणः (manīṣiṇaḥ) - the wise ones, thoughtful persons

(noun)

Nominative, masculine, plural of manīṣin

manīṣin - wise, thoughtful, intelligent person, sage