Mahabharata 3.114.13

वैशंपायन उवाच · vaiśaṃpāyana uvāca

ततो वैतरणीं सर्वे पाण्डवा द्रौपदी तथाअवतीर्य महाभागा तर्पयां चक्रिरे पितॄन्

tato vaitaraṇīṃ sarve pāṇḍavā draupadī tathāavatīrya mahābhāgā tarpayāṃ cakrire pitṝn

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