Ramayana
यस्माद्राक्षसयोनौ ते जातस्यामित्रनाशन । नाधर्मे जायते बुद्धिरमरत्वं ददामि ते ॥ 7-10-35 ॥
Since, though born in the womb of the Rakshasas, O destroyer of foes, no thought of unrighteousness arises in you, I grant you immortality."
english translation