Mahabharata 13.110.25

अग्निज्वालासमाभासं हंसबर्हिणसेवितम्शातकुम्भमयं युक्तं साधयेद्यानमुत्तमम्

agnijvālāsamābhāsaṃ haṃsabarhiṇasevitamśātakumbhamayaṃ yuktaṃ sādhayedyānamuttamam

Our plain-language meaning of this verse is waiting for scholar review.