A car knocked down 19 people outside the station at around 4.30pm on Thursday with 12 still in hospital.
Among the injured is a four-year-old child.
Soofi Aziz from the Ahmadiyya Muslim Community of Victoria said he was saddened to hear about the incident.
“I felt that not again, another terror incident that’s taken place in Melbourne, since the Bourke St incident,” he said.
“It’s wrong, no one should ever drive a car and plough into people, it’s just simply wrong.”
Once the initial shock had passed, his thoughts soon turned to how he could help.
“It’s just a normal thing to do, beyond just a moral thing it is also a religious obligation for Muslims like us to condemn any act of violence and terror,” he said.
“So we decided to just form a group and go out to the city, and our message is clear, as you see on the banner ‘Love for all, hatred for none’. “
Mr Aziz said the idea was not just to show solidarity, but to answer any questions people had.
“We got a lot of positive feedback,” he said. “It was fantastic.”
“We had an Imam with us as well to answer questions, and the mood was sombre but still people were appreciative of our efforts.”
The group also pledged to donate blood, a move which started in the wake of the September 11 attacks in the United States.
“This is just a small gesture,” Mr Aziz said.
The 32-year-old driver of the car remains in police custody, and has a history of mental health issues and drug use.
Victoria Police have said while there don’t appear to be any links to extremism, the man, an Australian citizen of Afghan descent, has made reference to “voices” and “mistreatment of Muslims”.
The motive for the incident is still being investigated.
The busy CBD area is now operating as usual.
Mr Aziz said there has unfortunately been some negative reaction, particularly on social media.
“After posting a tweet condemning such violent acts in general, we’ve got negative comments from the public.”
“We’re not expecting a lot of it.”
He believes the most important thing now is to stay united.
“We’re always here, as Muslims, as Australian Muslims in particular, we’re always here to serve our nation,” he said.
“We need to stand together, we shouldn’t be divided at this time.”
Another gathering planned for Friday morning was cancelled due to police advice.
