Mahabharata 1.27.19

न मिथ्या ब्रह्मणो वाक्यं कर्तुमर्हथ सत्तमाःभवतां च न मिथ्यायं संकल्पो मे चिकीर्षितः

na mithyā brahmaṇo vākyaṃ kartumarhatha sattamāḥbhavatāṃ ca na mithyāyaṃ saṃkalpo me cikīrṣitaḥ

Our plain-language meaning of this verse is waiting for scholar review.