Mahabharata 3.81.145

स्वर्गद्वारं ततो गच्छेन्नियतो नियताशनःस्वर्गलोकमवाप्नोति ब्रह्मलोकं च गच्छति

svargadvāraṃ tato gacchenniyato niyatāśanaḥsvargalokamavāpnoti brahmalokaṃ ca gacchati

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