Shiva Purana
या विप्रवनिता पूर्वंतमपुष्णात्स्वपुत्रवत्॥ सैव माताभवत्तस्य स भ्राता द्विजनन्दनः ॥ ७४ ॥
He considered the brahman lady who brought him up as his mother and the brahmin boy as his brother.
english translation
yA vipravanitA pUrvaMtamapuSNAtsvaputravat॥ saiva mAtAbhavattasya sa bhrAtA dvijanandanaH ॥ 74 ॥
hk transliteration by Sanscript