योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-88, verse-10

सृष्टिं चेन्न करोषि त्वं महेश परमात्मनः ।
नित्यकर्मपरित्यागात्किमपूर्वमवाप्स्यसि ॥ १० ॥

sṛṣṭiṃ cenna karoṣi tvaṃ maheśa paramātmanaḥ ,
nityakarmaparityāgātkimapūrvamavāpsyasi 10

10. sṛṣṭim cet na karoṣi tvam maheśa paramātmanaḥ
nitya-karma-parityāgāt kim apūrvam avāpsyasi

10. maheśa,
paramātmanaḥ tvam cet sṛṣṭim na karoṣi,
nitya-karma-parityāgāt kim apūrvam avāpsyasi?

10. O Maheśa, if you, the supreme Self (paramātman), do not perform creation, what unprecedented [benefit] will you obtain by abandoning [your] regular actions (karma)?

Words meanings summery:

• सृष्टिम् (sṛṣṭim) - creation (creation, emission, production)

• चेत् (cet) - if (if, whether)

• न (na) - not (not, no)

• करोषि (karoṣi) - you perform (you do, you make, you perform)

• त्वम् (tvam) - you

• महेश (maheśa) - O great lord (Maheśa) (O great lord, O Mahesha (epithet of Shiva))

• परमात्मनः (paramātmanaḥ) - as the supreme Self (paramātman) (of the supreme Self, of the individual Self, by the supreme Self)

• नित्य-कर्म-परित्यागात् (nitya-karma-parityāgāt) - by abandoning [your] regular actions (karma) (from the abandonment of regular/obligatory actions (karma))

• किम् (kim) - what (what, why, how)

• अपूर्वम् (apūrvam) - unprecedented [benefit] (unprecedented, new, unique, extraordinary)

• अवाप्स्यसि (avāpsyasi) - will you obtain (you will obtain, you will achieve)

Words meanings and morphology

सृष्टिम् (sṛṣṭim) - creation (creation, emission, production)

(noun)

Accusative, feminine, singular of sṛṣṭi

sṛṣṭi - creation, production, emission

From root 'sṛj'

Root: sṛj (class 6)

चेत् (cet) - if (if, whether)

(indeclinable)

न (na) - not (not, no)

(indeclinable)

करोषि (karoṣi) - you perform (you do, you make, you perform)

(verb)

2nd person , singular, active, present (laṭ) of kṛ

Root: kṛ (class 8)

त्वम् (tvam) - you

(pronoun)

Nominative, singular of tvad

tvad - you (pronoun)

महेश (maheśa) - O great lord (Maheśa) (O great lord, O Mahesha (epithet of Shiva))

(proper noun)

Vocative, masculine, singular of maheśa

maheśa - great lord, Mahesha (a name of Shiva)

Compound type : tatpurusha (mahā+īśa)

• mahā – great, large
  adjective (feminine)
• īśa – lord, master, ruler
  noun (masculine)
  From root 'īś' (to rule)
  Root: īś (class 2)

परमात्मनः (paramātmanaḥ) - as the supreme Self (paramātman) (of the supreme Self, of the individual Self, by the supreme Self)

(noun)

Genitive, masculine, singular of paramātman

paramātman - supreme Self, universal Self (ātman)

Compound type : tatpurusha (parama+ātman)

• parama – supreme, highest, ultimate
  adjective (masculine)
• ātman – self, soul, spirit, essence
  noun (masculine)

Note: Here, indicating the nature or status of 'tvam' (you are the supreme Self).

नित्य-कर्म-परित्यागात् (nitya-karma-parityāgāt) - by abandoning [your] regular actions (karma) (from the abandonment of regular/obligatory actions (karma))

(noun)

Ablative, masculine, singular of nitya-karma-parityāga

nitya-karma-parityāga - abandonment of daily/obligatory actions

Compound type : tatpurusha (nitya+karma+parityāga)

• nitya – regular, constant, obligatory, perpetual
  adjective (masculine)
• karma – action, deed, ritual, fate
  noun (neuter)
  From root 'kṛ'
  Root: kṛ (class 8)
• parityāga – abandonment, relinquishment, renunciation
  noun (masculine)
  From 'pari' + 'tyaj' (to abandon)
  Prefix: pari
  Root: tyaj (class 1)

किम् (kim) - what (what, why, how)

(pronoun)

Nominative, neuter, singular of kim

kim - what, which, why

अपूर्वम् (apūrvam) - unprecedented [benefit] (unprecedented, new, unique, extraordinary)

(adjective)

Accusative, neuter, singular of apūrva

apūrva - unprecedented, new, unique, not existing before

Compound type : tatpurusha (a+pūrva)

• a – not, un-
  indeclinable
  negation prefix
• pūrva – former, prior, preceding
  adjective (masculine)

Note: Here, used as a noun or an adjective modifying an implied noun like 'phalam' (fruit) or 'labham' (gain).

अवाप्स्यसि (avāpsyasi) - will you obtain (you will obtain, you will achieve)

(verb)

2nd person , singular, active, future (lṛṭ) of avāp

Prefix: ava

Root: āp (class 5)