Śrīmad-Bhāgavatam · Text 11.22.13
Who is speaking and story frame
सत्त्वं ज्ञानं रज: कर्म तमोऽज्ञानमिहोच्यते ।
गुणव्यतिकर: काल: स्वभाव: सूत्रमेव च ॥ १३ ॥
sattvaṁ jñānaṁ rajaḥ karma
tamo ’jñānam ihocyate
guṇa-vyatikaraḥ kālaḥ
svabhāvaḥ sūtram eva ca
In this world the mode of goodness is recognized as knowledge, the mode of passion as fruitive work, and the mode of darkness as ignorance. Time is perceived as the agitated interaction of the material modes, and the totality of functional propensity is embodied by the primeval sūtra, or mahat-tattva.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.