Hi

Try with following attributes.

options='{"always_reload": True, "no_create_edit": True, "no_create":True}'

if it's not working then the problem is two condition with single field will  not work.

Simple you can add one more field partner_id1 

onchange partner_id1  update partner_id field

<field name="partner_id" position="replace">

 <field name="partner_id" string="bhjk" domain="[('customer','=',True),('sale_invoice_type','=',sale_invoice_type)]"     context="{'search_default_customer':1, 'show_address': 1,'default_sale_invoice_type':sale_invoice_type}" attrs="  {'invisible': [('sale_invoice_type', '=', 'cash')]}" options='{"always_reload": True, "no_create_edit": True}'/>         

 <field name="partner_id1" domain="[('customer','=',True),('sale_invoice_type','=',sale_invoice_type)]" context="{'search_default_customer':1, 'show_address': 1,'default_sale_invoice_type':sale_invoice_type}" attrs="{'invisible': [('sale_invoice_type', '=', 'credit')]}" options='{"always_reload": True}'/>

                    </field>