Answered by Shaykh Faraz Rabbani
Wa Alaykum Assalam wa Rahmatullah wa Barakatuhu,
In the Name of Allah, Most Merciful & Compassionate
No, unless there are obvious signs of the filth itself (i.e. clear color or smell) on the shoe, then one would not consider the filth to remain nor to have transferred.
Faraz Rabbani
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