SB 4.5.7

atha — at that time; ṛtvijaḥ — the priests; yajamānaḥ — the chief person performing the sacrifice (Dakṣa); sadasyāḥ — all the persons assembled in the sacrificial arena; kakubhi udīcyām — in the northern direction; prasamīkṣya — seeing; reṇum — the dust storm; tamaḥ — darkness; kim — what; etat — this; kutaḥ — from where; etat — this; rajaḥ — dust; abhūt — has come; iti — thus; dvijāḥ — the brāhmaṇas; dvija-patnyaḥ — the wives of the brāhmaṇas; ca — and; dadhyuḥ — began to speculate.