to exit main procedure from procedure called by yhe main

Hi all,
i am using a code that loops through a range and finds if any cell is empty.On finding one i use msgbox as-"The cell is empty".
However I want to display the cell which is empty in msgbox.

code used is shown:-

Rng1.Select
       For Each Rng1 In Selection
       If Rng1.Value = "" Then
       'Set r = ActiveCell
       MsgBox "The cell is empty"
       
       End If
       Next Rng1

any help will be appreciated.