[6] Yassin was then incarcerated and executed afterwards, and received a small cult following in the form of his grave being turned into a holy site, or keramat shrine until it was demolished by local authorities.

[6][7] In 1851, Syed Omar was appointed by the British authorities to work alongside fellow merchant Tan Kim Seng to represent the Straits Settlements for a business exhibition held in London.

[1] Omar Road was named after him that led to his mosque at what is now the Clarke Quay area; this street was demolished during modern redevelopment.

[16] The name of Syed Omar is also present on textile products produced in the Toko Aljunied store located along Arab Street.

[17] An annual congregational prayer for Syed Omar, known as Haul Akbar, is celebrated in the oldest mosque in Singapore which he established.