B.G 17.01
अर्जुन उवाच
arjuna uvāca
[अर्जुन (arjuna) - Arjuna; उवाच (uvāca) - said;]
Arjuna said:
ये शास्त्रविधिमुत्सृज्य यजन्ते श्रद्धयान्विताः। तेषां निष्ठा तु का कृष्ण सत्त्वमाहो रजस्तमः ॥१॥
ye śāstravidhim utsṛjya yajante śraddhayānvitāḥ। teṣāṃ niṣṭhā tu kā kṛṣṇa sattvam āho rajastamaḥ ॥1॥
[ये (ye) - those who; शास्त्रविधिम् (śāstravidhim) - scriptural rules; उत्सृज्य (utsṛjya) - let go without having an understanding; यजन्ते (yajante) - worship; श्रद्धया (śraddhayā) - with faith; अन्विताः (anvitāḥ) - endowed; तेषाम् (teṣām) - their; निष्ठा (niṣṭhā) - faith; तु (tu) - but; का (kā) - what; कृष्ण (kṛṣṇa) - O Krishna; सत्त्वम् (sattvam) - goodness; आहो (āho) - or; रजः (rajaḥ) - passion; तमः (tamaḥ) - ignorance;]
O Krishna, those who let go of scriptural rules with limited understanding,  but still worship with faith, what is the nature of their faith? Is it aligned with goodness, passion, or ignorance?
Gīta Tātparya 17.01
The chapter elaborates on the discriminative knowledge required to differentiate between the truthful actions (sat-karma) and those that are untruthful (asat-karma).
सदसत्कर्मविवेकः।
sadasatkarmavivekaḥ।
[सत् (sat) - real; असत् (asat) - unreal; कर्म (karma) - action; विवेकः (vivekaḥ) - descriminative knowledge;]
The chapter elaborates on the discriminative knowledge required to differentiate between the truthful actions (sat-karma) and those that are untruthful (asat-karma).