Mahabharata 13.130.18

ब्रह्मलोकं महापुण्यं सोमलोकं च शाश्वतम्गच्छन्ति मुनयः सिद्धा ऋषिधर्मव्यपाश्रयात्

brahmalokaṃ mahāpuṇyaṃ somalokaṃ ca śāśvatamgacchanti munayaḥ siddhā ṛṣidharmavyapāśrayāt

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