इक्ष्वाकुवंशकीर्त्तनम्
Ikṣvāku Lineage Proclamation; Nimi–Mithilā/Videha Genealogy
किमर्थं वाकृषद्राजा क्षेत्रं यस्मिन् बभूव ह / सूत उवाच अग्निक्षेत्रे कृष्यमाणे अश्वमेधे महात्मनः
kimarthaṃ vākṛṣadrājā kṣetraṃ yasmin babhūva ha / sūta uvāca agnikṣetre kṛṣyamāṇe aśvamedhe mahātmanaḥ
Why did the king plough the field in which she (Sītā) appeared? Sūta replied: during the great-souled one’s Aśvamedha, the Agnikṣetra—the sacred field of Fire—was being tilled.