My dear Sukadeva Gosvami, you (Pariksit) have already explained that Sankarsana, who belongs to the second quadruple, appeared as the son of Rohini named Balarama - SB 10.1.8: Revision history
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.