Śrīmad-Bhāgavatam · Text 1.15.21
Who is speaking and story frame
तद्वै धनुस्त इषव: स रथो हयास्ते
सोऽहं रथी नृपतयो यत आनमन्ति ।
सर्वं क्षणेन तदभूदसदीशरिक्तं
भस्मन्हुतं कुहकराद्धमिवोप्तमूष्याम् ॥ २१ ॥
tad vai dhanus ta iṣavaḥ sa ratho hayās te
so ’haṁ rathī nṛpatayo yata ānamanti
sarvaṁ kṣaṇena tad abhūd asad īśa-riktaṁ
bhasman hutaṁ kuhaka-rāddham ivoptam ūṣyām
I have the very same Gāṇḍīva bow, the same arrows, the same chariot drawn by the same horses, and I use them as the same Arjuna to whom all the kings offered their due respects. But in the absence of Lord Kṛṣṇa, all of them, at a moment’s notice, have become null and void. It is exactly like offering clarified butter on ashes, accumulating money with a magic wand or sowing seeds on barren land.
Read Śrīla Prabhupāda's purport on Vedabase.io