Mahabharata 12.36.4

षड्भिर्वर्षैः कृच्छ्रभोजी ब्रह्महा पूयते नरःमासे मासे समश्नंस्तु त्रिभिर्वर्षैः प्रमुच्यते

ṣaḍbhirvarṣaiḥ kṛcchrabhojī brahmahā pūyate naraḥmāse māse samaśnaṃstu tribhirvarṣaiḥ pramucyate

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