svayaṁ vimamṛśur dhiyā

sri-sukah uvaca-Sri Sukadeva Gosvami said; tat-that; nisamya-hearing; atha-thereafter; haryasvah-all the sons of Prajapati Daksa; autpattika-naturally awakened; manisaya-by possessing the power to consider; vacah-of the speech; kutam-the enigma; tu-but; devarseh-of Narada Muni; svayam-themselves; vimamrsuh-reflected upon; dhiya-with full intelligence.