My husband is doing job in Dubai.I am housewife in India.How can I show my source of income to file tax return?

My husband is doing job in Dubai.He is sending money to my savings account from Dubai.I have done some fixed deposits in post office and some banks.If I have to file my tax return ,how can I show my source of income.My source is from dubai to my savings account.Which documents do I have to provide to show my source of income.Please help me out.