Islamic Interpretation of Dreams (Ibn-i Sirin):

In a dream, a threshold represents one’s gown, garment, one’s adornment, makeup, money, or it may denote closing a subject, spreading it, or it could represent a beautiful woman who embodies all the attributes man desires, including beauty, good character, intelligence, wealth and fertility. Buying a new threshold or sitting on one in a dream means that either the husband or the wife may suffer a bodily injury.

Ifone sees himself sitting under the threshold of his door in a dream, it represents an adversity or an illness.

If one sees himself being carried over the threshold of his door in a dream, it represents his funeral.

(Also see Doorstep; Door lintel; Doorplate)