 तं प्रयान्तं समुद्वीक्ष्य सुरसा वाक्यमब्रवीत्।बलं जिज्ञासमाना वै नागमाता हनूमतः।। 
 Surasa, mother of serpents, observing that Hanuman was attempting to escape, said this in order to gauge his strength 