Shiva Purana
विश्वेदेवाः सत्यवसुसंज्ञावंतः प्रकीर्त्तिताः ॥ देवश्राद्धे ब्रह्मविष्णु महेशाः कथितास्त्रयः ॥ ३७॥
The Visvedevas are described as having the name Satyavasu In the shraddha of the demigods, Brahma, Vishnu and Mahesh are mentioned as the three gods.
english translation
vizvedevAH satyavasusaMjJAvaMtaH prakIrttitAH ॥ devazrAddhe brahmaviSNu mahezAH kathitAstrayaH ॥ 37॥
hk transliteration by Sanscript