महाभारतः mahābhārataḥ - book-5, chapter-128, verse-50

अयं कर्ता न क्रियते कारणं चापि पौरुषे ।
यद्यदिच्छेदयं शौरिस्तत्तत्कुर्यादयत्नतः ॥५०॥

50. ayaṁ kartā na kriyate kāraṇaṁ cāpi pauruṣe ,
yadyadicchedayaṁ śauristattatkuryādayatnataḥ.

50. ayam kartā na kriyate kāraṇam ca api pauruṣe yat
yat icchet ayam śauriḥ tat tat kuryāt ayatnataḥ

50. ayam kartā na kriyate ayam ca api pauruṣe kāraṇam
ayam śauriḥ yat yat icchet tat tat ayatnataḥ kuryāt

50. This doer (Viṣṇu/Kṛṣṇa) is uncreated; he is also the cause of all activity (pauruṣa). Whatever this Śauri (Kṛṣṇa) desires, he accomplishes it effortlessly.

Words meanings summery:

• अयम् (ayam) - this (masculine singular)

• कर्ता (kartā) - doer, creator, agent

• न (na) - not, no

• क्रियते (kriyate) - is uncreated (in context with 'na') (is made, is done, is created)

• कारणम् (kāraṇam) - cause, reason

• च (ca) - and

• अपि (api) - also, even, too

• पौरुषे (pauruṣe) - in the activity (pauruṣa) of the supreme cosmic person (in human endeavor, in manly effort, in the activity of the supreme cosmic person (puruṣa))

• यत् (yat) - whatever (neuter singular)

• यत् (yat) - whatever (neuter singular)

• इच्छेत् (icchet) - desires (may desire, should desire)

• अयम् (ayam) - this (masculine singular)

• शौरिः (śauriḥ) - Kṛṣṇa (Śauri (descendant of Śūra))

• तत् (tat) - that, all that (neuter singular)

• तत् (tat) - that, all that (neuter singular)

• कुर्यात् (kuryāt) - accomplishes (may do, should do, accomplishes)

• अयत्नतः (ayatnataḥ) - effortlessly, without effort

Words meanings and morphology

अयम् (ayam) - this (masculine singular)

(pronoun)

Nominative, masculine, singular of idam

idam - this, he/she/it

कर्ता (kartā) - doer, creator, agent

(noun)

Nominative, masculine, singular of kartṛ

kartṛ - doer, maker, agent, creator

Agent noun

Derived from the root kṛ (to do, make) with the tṛc suffix.

Root: kṛ (class 8)

न (na) - not, no

(indeclinable)

क्रियते (kriyate) - is uncreated (in context with 'na') (is made, is done, is created)

(verb)

3rd person , singular, passive, present indicative (laṭ) of kṛ

Root: kṛ (class 8)

कारणम् (kāraṇam) - cause, reason

(noun)

Nominative, neuter, singular of kāraṇa

kāraṇa - cause, reason, motive

Derived from the root kṛ (to do, make).

Root: kṛ (class 8)

च (ca) - and

(indeclinable)

अपि (api) - also, even, too

(indeclinable)

पौरुषे (pauruṣe) - in the activity (pauruṣa) of the supreme cosmic person (in human endeavor, in manly effort, in the activity of the supreme cosmic person (puruṣa))

(noun)

Locative, neuter, singular of pauruṣa

pauruṣa - manliness, human effort, heroism, activity of the cosmic person (puruṣa)

Derived from puruṣa (person, cosmic being) with the aṇ suffix, indicating belonging or quality.

यत् (yat) - whatever (neuter singular)

(pronoun)

Accusative, neuter, singular of yad

yad - which, what, whatever

Relative pronoun.

Note: Repetition of 'yat' (yat yat) emphasizes 'whatever (and whatever)' implying 'anything at all'.

यत् (yat) - whatever (neuter singular)

(pronoun)

Accusative, neuter, singular of yad

yad - which, what, whatever

Relative pronoun.

इच्छेत् (icchet) - desires (may desire, should desire)

(verb)

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

Root: iṣ (class 4)

अयम् (ayam) - this (masculine singular)

(pronoun)

Nominative, masculine, singular of idam

idam - this, he/she/it

शौरिः (śauriḥ) - Kṛṣṇa (Śauri (descendant of Śūra))

(proper noun)

Nominative, masculine, singular of śauri

śauri - descendant of Śūra; an epithet of Kṛṣṇa

Patronymic from Śūra.

तत् (tat) - that, all that (neuter singular)

(pronoun)

Accusative, neuter, singular of tad

tad - that, he/she/it

तत् (tat) - that, all that (neuter singular)

(pronoun)

Accusative, neuter, singular of tad

tad - that, he/she/it

कुर्यात् (kuryāt) - accomplishes (may do, should do, accomplishes)

(verb)

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

Root: kṛ (class 8)

अयत्नतः (ayatnataḥ) - effortlessly, without effort

(indeclinable)

Derived from a-yatna (no effort) with the tasil suffix.

Compound type : Nañ-Tatpurusha (a+yatna)

• a – not, non-, un-
  indeclinable
  Negative prefix.
• yatna – effort, exertion, endeavor
  noun (masculine)