Ramayana 1.21.17

सुप्रभाऽजनयच्चापि पुत्रान्पञ्चाशतं पुन:।संहारान्नामदुर्धर्षान् दुराक्रामान् बलीयस:।।।।

suprabhā ’janayac cāpi putrān pañcāśataṃ punaḥ | saṃhārān nāma durdharṣān durākrāmān balīyasaḥ ||

Suprabhā too bore another fifty sons, called the Saṃhāras—unassailable, hard to overcome, and exceedingly powerful.