Income tax (provision of clubbing)

we know that income is taxable in tha hand of an assesee if he trasnfers the certain amount without consideration to the spouse of his son.

& we know that Exemption to above case is that amount shud not be transfered before the marriage neither after the divorce

i.e section comes into force when the son & his spouse marriage is in existence......

So Mine Question is that i want to clarify that whether income transfered by an asseesee to the spouse of his son will be taxable in the hands of assesee even if on the date of transfer of such amount the son is no more that is son has died ...will in this case the provision of clubbing will be applicable ???????????????