Buddhist Dictionary of Pali Proper Names by G P Malalasekera
bhāra-sutta
Bhāra-Sutta:The burden is the five upādānakkhandhas,the burden-bearer is the person (puggala),the taking up of the burden is the lust that leads to rebirth,the laying down of the burden is passionless ceasing of craving.S.iii.25f.