Source: The Great Interpretation of Dreams (Ibn Sirin)
(By analogy with sweeping and washing) Cleaning in a dream indicates the end of worries and troubles, repentance from sins, and righteousness.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
(By analogy) Cleaning indicates relief after hardship and recovery from illness. Cleaning the house indicates the righteousness of its people.
Source: Signs in the Science of Expressions (Ibn Shaheen)
(By analogy) Cleaning is interpreted as goodness and blessing. Whoever sees himself cleaning, his affairs will be rectified and his worry will vanish.