No. It can provide context without establishing the individual’s lawful source, path or actual investment. Keep the person’s contribution identifiable.
Connect the project total with real individual records
Do not assign other investors’ money to the applicant. Explain the genuine transfers and rights and preserve the supporting documentation for the actual case.
Everything that turns a completed business sale into a documented chain: the share purchase agreement, valuation, closing statement, corporate and shareholder records, personal and corporate tax filings, and then bank statements tracing the proceeds account by account into the enterprise. Documents proving both where the money came from and how it travelled: business financial statements and tax filings, sale or dividend records for whatever was liquidated, loan agreements with their security terms, and bank statements connecting each transfer from origin to the enterprise account. Where funds come from employment income accumulated over many years, the natural evidence is the employment itself: contracts or letters covering the period, pay records, and personal tax filings for the relevant years showing income consistent with the savings claimed. The professional work behind a source-of-funds file is substantial: an accountant reconstructing several years of company distributions, a lawyer assembling and presenting the chain, valuations for the property securing the loan, and certified translations where needed.