ॠषिभिः बहुधा गीतम् छन्दोभिः विविधैः पृथक्
ब्रह्म-सूत्र पदैः च एव हेतुमद्भिः विनिश्चितैः

ॠषिभिर्बहुधा गीतं छन्दोभिर्विविधैः पृथक् ।
ब्रह्मसूत्रपदैश्चैव हेतुमद्भिर्विनिश्चितैः ॥१३:५॥

rishivhirbahudhaa geetam chhandobhirvividhaih prithak
brahmaasootrapadaishchaiva hetumadbhirvinishchitaih ||13:5||

rishibhih bahudhaa geetam chhandobhih vividhaih prithak
brahma-sootra padaih cha eva hetumadbhih vinishchitaih

Purport It has been sung by the sages, in many ways, in various separate metered poetry, in the Brahma-sootra hymns, just by ascertaining causes and effects.

ॠषिभिः (rishibhih) -- with/by the sages
बहुधा (bahudhaa) -- in many ways; repeatedly
गीतम् (geetam) -- sung; singing
छन्दोभिः (chhandobhih) -- in metered poems
विविधैः (vividhaih) -- in various
पृथक् (prithak) -- apart; separately
ब्रह्म (brahma) -- the absolute
सूत्र (sutra) -- thread; string
पदैः (padaih) -- with/by words/terms
च (cha) -- also; and
एव (eva) -- only; just; alone
हेतुमद्भिः (hetumadbhih) -- causes and effects
विनिश्चितैः (vinischitaih) -- by ascertaining