Śrīmad-Bhāgavatam · Text 9.3.16
Who is speaking and story frame
तान् निरीक्ष्य वरारोहा सरूपान् सूर्यवर्चस: ।
अजानती पतिं साध्वी अश्विनौ शरणं ययौ ॥ १६ ॥
tān nirīkṣya varārohā
sarūpān sūrya-varcasaḥ
ajānatī patiṁ sādhvī
aśvinau śaraṇaṁ yayau
The chaste and very beautiful Sukanyā could not distinguish her husband from the two Aśvinī-kumāras, for they were equally beautiful. Not understanding who her real husband was, she took shelter of the Aśvinī-kumāras.
Read Śrīla Prabhupāda's purport on Vedabase.io