AVŚ 6.112.2
उन् मुञ्च पाशांस् त्वम् अग्न एषां त्रयस् त्रिभिर् उत्सिता येभिर् आसन् । स ग्राह्याः पाशान् वि चृत प्रजानन् पितापुत्रौ मातरं मुञ्च सर्वान् ॥२॥
un muñca pāśāṃs tvam agna eṣāṃ trayas tribhir utsitā yebhir āsan | sa grāhyāḥ pāśān vi cṛta prajānan pitāputrau mātaraṃ muñca sarvān ||2||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Do thou, O Agni, loosen up the bonds of them, the three with which they three were tied up; do thou, foreknowing, unfasten the bonds of the seizure; free all—father, son, mother.
Translated by William Dwight Whitney (1905)