Bhagavad Gita, Chapter 18, Verse 4

निश्चयं शृणु मे तत्र त्यागे भरतसत्तम । त्यागो हि पुरुषव्याघ्र त्रिविधः सम्प्रकीर्तितः

niścayaṃ śṛṇu me tatra tyāge bharatasattama | tyāgo hi puruṣavyāghra trividhaḥ samprakīrtitaḥ

Translation

Learn from Me the truth about this abandonment, O best of the Bhāratas; abandonment, verily, O best of men, has been declared to be of three kinds.

— Alladi Mahadeva Sastri

Word meanings

niścayam
conclusion
śṛṇu
hear
me
my
tatra
there
tyāge
in (respect of) abandonment
bharatasattama
O best of the Bhāratas
tyāgaḥ
abandonment
hi
indeed
puruṣavyāghra
O tiger of men
trividhaḥ
threefold
samprakīrtitaḥ
is declared

Śaṅkarācārya's commentary

Do thou learn from My words the truth as to the alternatives of abandonment and renunciation referred to. The Lord uses the single word 'tyāga' here, implying that the meaning of 'tyāga' and 'saṃnyāsa' is one and the same. Of three kinds: Tāmasic, Rājasic, Sāttvic — as declared in the śāstras.