sapta brahmarṣayo 'malāḥ

urjayam-in Ūrja; jajnire-took birth; putrah-sons; vasisthasya-of the great sage Vasistha; parantapa-O great one; citraketu-Citraketu; pradhanah-headed by; te-all the sons; sapta-seven; brahmarsayah-great sages with spiritual knowledge; amalah-without contamination.