K H Ng

I would like to ask about the amount of money from insurance surrender from hk before I came to Uk at the end of April in 2022, as the amount of money was transferred from the insurance company after 06/04/2022 as the insurance policy was being terminated at the end of march, should I need to declare the amount of money for self assessment as income? but I'm not sure how I can proof the amount of money had any gain or profit inside.