B.G 6.01

श्री भगवानुवाच
अनाश्रितः कर्मफलं कार्यं कर्म करोति यः। स संन्यासी च योगी च न निरग्निर्न चाक्रियः ॥१॥

The revered Divine Lord said,
One who performs activities without seeking the fruits of the action is both a renunciant and a Yogi. Not he who is devoid of fire, as well as activities.

Gīta Bhāshya 6.01

An internal discipline to be practiced for knowledge is explained in this chapter. Practicing detachment is necessary along with Yoga. Intent is not to recommend detachment and inaction for monkhood.

॥हरिः ॐ॥

Lord Hari is only Om!

ज्ञानान्तरङ्गं समाधियोगम् आह अनेन अध्यायेन। विवक्षितं संन्यासमाह योगेन सह - अनाश्रित इति। चतुर्थाश्रमिणोऽपि अग्निः क्रिया च उक्ता 'दैवमेव' इत्यादौ।

In this chapter, the yoga of equanimity, which is an internal discipline to be practiced for knowledge, is expounded. The required detachment to be practiced along with Yoga is explained in 'anāśrita' verse. Even for those in the fourth stage of life, i.e. monkhood, the necessity of action and the concept of sacrificial fire have been explained in the verse 'daivameva' (Gita 4.25).

"अग्निर्ब्रह्म च तत्पूजा क्रिया न्यासाश्रमे स्मृता॥"

"For the renounced order, fire is the Brahman, and his worship is the recommended action."

इति च।

- stated thus by testimonials as well.

तस्मात् निरग्निः अक्रियः संन्यासी योगी च न भवत्येव ॥१॥

Therefore, without sacrificial fire and without duties, one is neither an ascetic nor a Yogi.