Shiva Purana
ब्रह्मा विष्णुस्तथा रुद्रो महेशानस्सदाशिवः ॥ मूर्तयस्तस्य विज्ञेया याभिर्विश्वमिदं ततम् ॥ ३ ॥
These shall be known as his Mūrtis whereby this universe is pervaded viz:—Brahmā, Viṣṇu, Rudra, Maheśāna and Sadāśiva.
english translation
brahmA viSNustathA rudro mahezAnassadAzivaH ॥ mUrtayastasya vijJeyA yAbhirvizvamidaM tatam ॥ 3 ॥
hk transliteration by Sanscript