Mahabharata 3.211.25

दक्षिणाग्निर्यदा द्वाभ्यां संसृजेत तदा किलइष्टिरष्टाकपालेन कार्या वै वीतयेऽग्नये

dakṣiṇāgniryadā dvābhyāṃ saṃsṛjeta tadā kilaiṣṭiraṣṭākapālena kāryā vai vītaye'gnaye

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