Issa, who has worked as a street cleaner for years under Barking & Dagenham Council, was assaulted on Broad Street at 6.46am on July 31.
He was found with injuries to his face before being treated by the London Ambulance Service.
Two women, 20 and 21, were arrested on Sunday (August 3) on suspicion of assault and racially aggravated public order.
They have since been bailed.
On Monday (August 4), a 23-year-old woman was also arrested for assault.
In a fundraiser set up for Issa, it reads: “Please donate to help our local street cleaner who has been seriously assaulted whilst doing his job with a smile.”
It continues: “This guy is a legend! He always goes above and beyond for his job and is always friendly.
“He works so hard even though mobility isn’t his strongest point, he’s a testament to independence, hard work and strength.
“Let’s let him know his work never goes unnoticed and we are forever grateful for him, and we support him.
“God bless, he’s such a bonus to the council refuse sector.”
To donate to the fundraiser, visit: www.gofundme.com/f/donate-to-help-our-broad-street-picker
A Metropolitan Police spokesperson said: “On Thursday, July 31 at 06:43hrs officers responded to reports a man had been assaulted on Broad Street, Dagenham.
“The man suffered facial injuries and was taken to hospital by the London Ambulance Service. The victim is now being provided specialist support by officers
“The investigation is being lead by East Area CID Local Investigations Team and three suspects have been identified.
“On Sunday, August 3 a 20-year old woman and a 21-year old woman were arrested for the assault and racially aggravated public order.
“The two women have been bailed. On Monday, August 4 a 23-year old woman was also arrested for assault and remains in custody.”
Anyone with information is asked to call police on 101 quoting reference 1099/31JUL25. Alternatively contact Crimestoppers anonymously on 0800 555 111.
