kvacit krīḍā-pariśrāntaḿ
gopotsańgopabarhaṇam
svayaḿ viśramayaty āryaḿ
pāda-saḿvāhanādibhiḥ
kvacit -- sometimes; krida -- by playing; parisrantam -- fatigued; gopa -- of a cowherd boy; utsanga -- the lap; upabarhanam -- using as His pillow; svayam -- personally; visramayati -- relieves Him from His fatigue; aryam -- His elder brother; pada-samvahana-adibhih -- by massaging His feet and offering other services.
The word pada-samvahanadibhih indicates that Lord Krishna would massage Balarama's feet, fan Him and bring Him river water to drink.