Shiva Purana
बृंहणत्वं बृहत्त्वं च शंभ्वाख्यविग्रहे ॥ पंचब्रह्ममये विश्वप्रतीतिर्ब्रह्म शब्दिता ॥ ३६ ॥
Growing in size and massiveness is ever present in Śiva constituting the five Brahmans. The word Brahman denotes the universe.
english translation
bRMhaNatvaM bRhattvaM ca zaMbhvAkhyavigrahe ॥ paMcabrahmamaye vizvapratItirbrahma zabditA ॥ 36 ॥
hk transliteration by Sanscript