Source: The Great Interpretation of Dreams (Ibn Sirin)
Ablution with murky or hot water indicates worry, grief, and illness. It indicates falling into a doubtful matter.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
Whoever sees himself performing ablution with murky water will fall into worry. If he is a merchant, he will lose in his trade.
Source: Signs in the Science of Expressions (Ibn Shaheen)
Ablution with murky water is interpreted as worry. Whoever sees himself performing ablution with it will be afflicted with worry.