किमेकं दैवतं लोके किं वाप्येकं परायणम् ।
स्तुवन्तः कं कमर्चन्तः प्राप्नुयुर्मानवाः शुभम्
को धर्मः सर्वधर्माणां भवतः परमो मतः ।
किं जपन्मुच्यते जन्तुर्जन्मसंसारबन्धनात् ॥
विश्वम् : One who contains the universe in him
विष्णुः : One who pervades the universe
अक्षरः One who is ineradicable
शिवः One who is eternally auspicious
These names do suggest that the brahman in question here is "Saguna"
Adi Sankara's Bhashya : 8th century (Advaitin commentary)
Parasara Bhattar's Bhashya : 12th century (Vishishtadwaita commentary) Madhvacharya's Bhashya : 13th century (Dvaita commentary)