Shiva Purana
ब्रह्मा ब्रह्मत्वमापन्नो विष्णुर्विष्णुत्वमागतः ॥ रुद्रो रुद्रत्वमापन्न इंद्रश्चेन्द्रत्वमागतः ॥ ७ ॥
Brahmā attained his Brahmāhood, Viṣṇu his Viṣṇuhood, Rudra his Rudrahood and Indra his Indrahood. It is by means of this rite that Gaṇeśa attained his Gaṇeśahood.
english translation
brahmA brahmatvamApanno viSNurviSNutvamAgataH ॥ rudro rudratvamApanna iMdrazcendratvamAgataH ॥ 7 ॥
hk transliteration by Sanscript