muhūrtaṁ duḥkhito 'bhavat

tasya-his; nirharanadini-funeral ceremony; samparetasya-of the dead body; bhargava-O descendant of Bhrgu; yudhisthirah-Maharaja Yudhisthira; karayitva-having performed it; muhurtam-for a moment; duhkhitah-sorry; abhavat-became.