Source: The Great Interpretation of Dreams (Ibn Sirin)
Dry clay in a dream indicates lasting money or a chronic illness.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
Dry clay indicates steadfastness in religion or lasting worry.
Source: Signs in the Science of Expressions (Ibn Shaheen)
Dry clay is interpreted as worry. Whoever sees himself eating it will be afflicted with worry.