[Avodah] When Bittul Chometz precedes Mechiras Chometz

[Ben Waxman]

You need to do a bedika even if you do bitul, not a mechira. AFAIK there 
is no issur in having a goy's chameitz sitting in your property.
Ben

On 4/19/2018 12:33 AM, Akiva Miller via Avodah wrote:
> I suspect that you misunderstood those rabbanim, and what they meant
> was that once you sell your chameitz there is no*d'Oraisa*  need to do
> a bedika. We do the bedika anyway because it is a Chiyuv D'Rabanan,
> and that's why we say the bracha.
>
> This is actually a very old question, usually phrased as: "If I do
> Bitul, why do I need a Bedika also?"