cukruśuḥ samaharṣayaḥ

vrtra-grastam-swallowed by Vrtrasura; tam-him (Indra); alokya-seeing; sa-prajapatayah-with Lord Brahma and other prajapatis; surah-all the demigods; ha-alas; kastam-what a tribulation; iti-thus; nirvinnah-being very morose; cukrusuh-lamented; sa-maha-rsayah-with the great sages.