योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-3, verse-18

कर्मबीजकलात्यागे त्वेतस्मादितरात्मनि ।
अविद्यमाने जीवस्य तज्ज्ञैर्विदितवस्तुभिः ॥ १८ ॥

karmabījakalātyāge tvetasmāditarātmani ,
avidyamāne jīvasya tajjñairviditavastubhiḥ 18

18. karma-bīja-kalā-tyāge tu etasmāt itara-ātmani
avidyamāne jīvasya tat-jñaiḥ vidita-vastubhiḥ

18. tu jīvasya karma-bīja-kalā-tyāge etasmāt
itara-ātmani avidyamāne tat-jñaiḥ vidita-vastubhiḥ

18. Indeed, for the individual soul (jīva), when the abandonment of the seeds and potencies of (karma) occurs, and this other self (the egoic principle) is non-existent, this truth is known by those who understand reality.

Words meanings summery:

• कर्म-बीज-कला-त्यागे (karma-bīja-kalā-tyāge) - in the abandonment of the seeds and manifestations of (karma) (in the abandonment of the seeds and potencies of action)

• तु (tu) - indeed (but, indeed, however)

• एतस्मात् (etasmāt) - this (referring to the 'other self') (from this, than this)

• इतर-आत्मनि (itara-ātmani) - in the individual or egoic self (ātman) (in the other self, in the distinct self)

• अविद्यमाने (avidyamāne) - when the (egoic) self is absent (when not existing, being absent, in the absence of)

• जीवस्य (jīvasya) - of the individual soul (jīva) (of the living being, of the soul, of the individual)

• तत्-ज्ञैः (tat-jñaiḥ) - by those who know the true nature of reality (by those who know that, by the knowers of truth)

• विदित-वस्तुभिः (vidita-vastubhiḥ) - by those who have understood the true nature of existence (by those for whom things are known, by those who have known reality)

Words meanings and morphology

कर्म-बीज-कला-त्यागे (karma-bīja-kalā-tyāge) - in the abandonment of the seeds and manifestations of (karma) (in the abandonment of the seeds and potencies of action)

(noun)

Locative, masculine, singular of karma-bīja-kalā-tyāga

karma-bīja-kalā-tyāga - abandonment of the seeds and potencies of action

Compound type : tatpuruṣa (karma-bīja-kalā+tyāga)

• karma – action, deed, ritual, fate
  noun (neuter)
  Root: kṛ (class 8)
• bīja – seed, germ, origin, cause
  noun (neuter)
• kalā – part, portion, digit, art, potency, manifestation
  noun (feminine)
• tyāga – abandonment, relinquishment, renunciation, sacrifice
  noun (masculine)
  From root tyaj- with suffix -a
  Root: tyaj (class 1)

तु (tu) - indeed (but, indeed, however)

(indeclinable)

एतस्मात् (etasmāt) - this (referring to the 'other self') (from this, than this)

(pronoun)

Ablative, neuter, singular of etad

etad - this

Note: While ablative, it is interpreted adverbially or adjectivally in this context to introduce 'itarātmani'.

इतर-आत्मनि (itara-ātmani) - in the individual or egoic self (ātman) (in the other self, in the distinct self)

(noun)

Locative, masculine, singular of itara-ātman

itara-ātman - the other self, a different self

Compound type : tatpuruṣa (itara+ātman)

• itara – other, different, distinct
  adjective (masculine)
• ātman – self, soul, spirit, essence
  noun (masculine)
  Root: an (class 2)

अविद्यमाने (avidyamāne) - when the (egoic) self is absent (when not existing, being absent, in the absence of)

(participle)

Locative, masculine, singular of avidyamāna

avidyamāna - not existing, being absent, non-existent

Present Passive Participle

Formed from 'a-' (negation) + 'vidyamāna' (present passive participle of root 'vid' - to be, to exist).

Compound type : nañ-tatpuruṣa (a+vidyamāna)

• a – not, non-
  indeclinable
  Negating prefix
• vidyamāna – existing, being present
  participle (masculine)
  Present Passive Participle
  From root 'vid' (to be, exist) with suffix -māna
  Root: vid (class 2)

जीवस्य (jīvasya) - of the individual soul (jīva) (of the living being, of the soul, of the individual)

(noun)

Genitive, masculine, singular of jīva

jīva - living being, soul, individual, life

From root 'jīv' (to live)

Root: jīv (class 1)

तत्-ज्ञैः (tat-jñaiḥ) - by those who know the true nature of reality (by those who know that, by the knowers of truth)

(adjective/noun)

Compound type : tatpuruṣa (tad+jña)

• tad – that, it
  pronoun (neuter)
• jña – knowing, knower, wise
  adjective/noun (masculine)
  From root jñā (to know) with kṛt suffix -a
  Root: jñā (class 9)

विदित-वस्तुभिः (vidita-vastubhiḥ) - by those who have understood the true nature of existence (by those for whom things are known, by those who have known reality)

(adjective/noun)

Compound type : bahuvrīhi (vidita+vastu)

• vidita – known, understood, perceived
  participle (neuter)
  Past Passive Participle
  From root vid (to know, perceive)
  Root: vid (class 2)
• vastu – thing, object, reality, substance
  noun (neuter)

Note: Agrees with 'tat-jñaiḥ'.