The mother of Syrian refugee detained over the Parsons Green bombing suffered a heart attack after hearing of her son's arrest, according to her employers.
The nightclub promoter was released mother remains in a critical condition in a hospital in Egypt after collapsing from shock.
Aladdins owner Suleman Sarwar said the takeaway had received "abuse, threats, anger and hatred" after Mr Farroukh was swooped on by undercover detectives after finishing his shift on Saturday night (September 16).
He said: "The investigation brought Yahyah, his friends, family, place of employment and the wider Muslim community under scrutiny and indignity.
"Once again, the community has received backlash and animosity from the public."
Four people, including a 17-year-old boy, continue to be questioned by police in connection with the rush-hour bombing.
Scotland Yard has confirmed a 48-year-old man was arrested in Newport but was released on Wednesday (September 20) without charge.
The teenager was detained following a raid by officers in what neighbours described as a "halfway house" in Thornton Heath just after midnight on Thursday (September 21).
The investigation into the attack, which injured 30 people, has seen two men aged 25 and 30 detained in Newport, south Wales and an 18-year-old man detained at the Port of Dover.
Police confirm warrants for the further detention of the men from Newport were granted until Tuesday (September 26).
Searches at a Surrey, Newport and two Newport addresses are continuing.
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