Did a quick search and did not find it.
You can claim £5 off your shopping at Morrisons when you spend at least £40 and use a free voucher from The Sun this Thursday
The voucher is only available inside The Sun on 14th June, 2012.
The £5 voucher will be valid until 17th June, 2012.
You must spend a minimum of £40 to be able to use the voucher (excludes Morrisons petrol stations).