From the hospital he went to the home of AGM Sabbir, who offered the youngster hospitality in London on Saturday.
After observing Mustafizur in the morning, surgeon Andrew Wallace cleared his release from the hospital.
Dr Debashish Chowdhury, Chief Physician of Bangladesh Cricket Board, who was present at the time, said Wallace had assured that Mustafizur was fine.
But the 20-year-old seamer still has to wait before packing his bags for the trip back to Bangladesh as he has an appointment with Wallace at Fortius Clinic on Wednesday 12pm BST.
Dr Chowdhury believes Wallace will clear Mustafizur's return to the country after Wednesday's check-up.
With the physiotherapy sessions, which will be done with guidance from Wallace, still days away, Mustafizur has taken to light exercises to keep his arms and legs from becoming stiff.
If Wallace suggests therapy from a physio in London, Mustafizur may begin his sessions there, Dr Chowdhury said.
After the surgery on his left shoulder, the young sensation spent two nights at the hospital. His friend Faruk Hossain accompanied him.