Shiva Purana
अतः सर्वगणेशत्वं कुमारत्वं च शाश्वतम् ॥ सह दुग्धाब्धिना तस्मै प्रददौ शंकरः स्वयम् ॥ ७ ॥
Śiva granted him perpetual bachelorhood, lord-ship of all the Gaṇas along with an ocean of milk.
english translation
ataH sarvagaNezatvaM kumAratvaM ca zAzvatam ॥ saha dugdhAbdhinA tasmai pradadau zaMkaraH svayam ॥ 7 ॥
hk transliteration by Sanscript