Ramayana
राक्षसस्त्वं मया जातः पुत्ररूपो दुरासदः । प्रतिहंसि ममाज्ञां यत् प्रजार्थे विफलो भव ॥ 7-59-14 ॥
"You were born of me as a rakshasa in the form of a son, hard to overcome; because you defy my command, be barren as regards offspring."
english translation