Mahabharata 3.25.13
वैशंपायन उवाच · vaiśaṃpāyana uvāca
ततस्ते प्रययुः सर्वे पाण्डवा धर्मचारिणःब्राह्मणैर्बहुभिः सार्धं पुण्यं द्वैतवनं सरः
tataste prayayuḥ sarve pāṇḍavā dharmacāriṇaḥbrāhmaṇairbahubhiḥ sārdhaṃ puṇyaṃ dvaitavanaṃ saraḥ
Our plain-language meaning of this verse is waiting for scholar review.