Verse
अर्जुन उवाच
ये शास्त्रविधिमुत्सृज्य यजन्ते श्रद्धयान्विताः ।तेषां निष्ठा तु का कृष्ण सत्त्वमाहो रजस्तमः ॥
ye śāstravidhimutsṛjya yajante śraddhayānvitāḥteṣāṃ niṣṭhā tu kā kṛṣṇa sattvamāho rajastamaḥ
Arjuna said: When men sacrifice to God or the gods with faith, but abandon the rule of the Shastra, what is that concentrated will of devotion in them, niṣṭhā, which gives them this faith and moves them to this kind of action, O Krishna? Is it sattwa, rajas or tamas?
Gītā 17·1