Ramayana
मा भूत्ते विफला वाणी मत्प्रसादकृता शुभा । भवतः पुत्रमेकं तु शूलमेतद्भजिष्यते ॥ 7-61-14 ॥
"'Let not your auspicious utterance, granted by my favour, prove fruitless; but this trident shall belong to one son of yours alone.'"
english translation