Vishnu

Vishnu is the Supreme God in the Vaishnavite tradition of Hinduism. Smarta followers of Adi Shankara, among others, venerate Vishnu as one of the five primary forms of God. The Vishnu Sahasranama declares Vishnu as Paramatma (supreme soul) and Parameshwara (supreme God). It describes Vishnu as the All-Pervading essence of all beings, the master of—and beyond—the past, present and future, the creator and destroyer of all existences, one who supports, sustains and governs the Universe and originates and develops all elements within. In the Puranas, Vishnu is described as having the divine colour of water filled clouds, four-armed, holding a lotus, mace, conch and chakra (wheel). Vishnu is also described in the Bhagavad Gita as having a 'Universal Form' (Vishvarupa) which is beyond the ordinary limits of human perception.

Sikhism on Vishnu

Sikhism instructs to worship One God only and none else. Sikhs do not worship any demi gods like Shiva. Guru Granth Sahib tells following:

God is the creator of all. “He created air, water, fire, Brahma, Vishnu and Shiva” (Guru Granth Sahib, 504).

“He created Brahma, Vishnu and Shiva, who act according to His Will” (Guru Granth Sahib, 948).

“The performance of countless millions of other devotions is not even equal to one devotion to the Name of God” (Guru Granth Sahib, 1163). “Those who serve Shiva and Brahma cannot find the limits of God” (Guru Granth Sahib, 516).

The ones who serve any other instead of God cannot attain salvation. Salvation is granted only by God. “Everyone must serve the One Lord, who created Brahma, Vishnu and Shiva. O Nanak, the One True Lord is permanent and stable. He does not die, and He is not born” (Guru Granth Sahib, 1130).

By the order of God, Brahma obtained a body. By the order of God, Shiva was born. By the order of God, Vishnu was born. Everything is created by God. God, who made Shiva a yogi. God, who gave Brahma the kingdom of Vedas. God, who has shaped the entire universe. Is the one we salute. They consider that Shiva is God. They are unaware of the Supreme Primal Lord. (Benti Chaupee Sahib).

Sikhi teaches that their is only one God. The Guru Granth Sahib Ji is the Holy Scripture of the Sikhs. Sikhs bow their head in their Gurdwaras to Guru Granth Sahib as a sign of respect but Sikhs do not worship the scriptures. Considered the Eleventh spiritual teacher of the Sikhs which shows the way to meet God. Guru Nanak instructs that idol worship will not lead one to salvation. Worshipping sculptures of stone will not help one to meet God.

Guru Nanak Dev said that for sikhs:

The Guru is Shiva, the Guru is Vishnu and Brahma; the Guru is Paarvati and Lakhshmi. Shiva, Brahma and the Goddess of Beauty, ever adorned, sing.

Remember Vishnu again and again; By remembering Vishnu you will never suffer defeat. (Gauri Bawan Akhri Kabir, p. 342)

At whose door should I take refuge, Vishnu, Shiva, an adept, a Muni or Indra. One may give you kingdom, the other may take you to heaven, rare one among a million may ask for salvation. (Kalyan M. 5, p. 1322)

O Lord! Vishnu and Lakshmi could not know you besides four Vedas, Smritis and Puranas. (Dhanasari Kabir, p. 691)

Kishan (connoting Vishnu) is always busy in incarnating himself, then with whose help one may ferry across the world-ocean ? (Wadhans M. 3, p. 559)

last but not least

He created air, water and fire, Brahma, Vishnu and Shiva - the whole creation.

Reference

wikipedia