app/views/admin/auth/passwords/new.html.erb
<div class="login">
<%= form_for(resource, as: resource_name, url: password_path(resource_name), html: { method: :post }) do |f| %>
<%= devise_error_messages! %>
<p>
<%= f.label :email %><br />
<%= f.email_field :email %>
</p>
<p><%= f.submit "Send me reset password instructions" %></p>
<% end %>
</div>