COVID-19 vaccines are safe after approval and our clinicians strongly recommend you to have vaccination when it is offered to you in any form. The physical vulnerabilities that are associated with renal failure and its treatment make it more important to protect yourself. If you are in doubt please talk with your doctors and nurses, they welcome the discussion.
You may find the following helpful to come to a decision:
Patient Vaccine Briefing Document
https://britishima.org/pfizer-biontech-covid19-vaccine/ statement about the vaccine and Islam
https://www.bbc.co.uk/news/av/uk-55353161 BBC short films translated into Tamil, Sylheti, Urdu, Punjabi and Gujarati