Source: The Great Interpretation of Dreams (Ibn Sirin)
(By analogy with rust) Old rust may indicate old corruption in religion or a bad relationship that has persisted for a long time.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
(By analogy) It may indicate an old heresy or persistent worry.
Source: Signs in the Science of Expressions (Ibn Shaheen)
(By analogy) It is interpreted as persistent worry or an old hypocritical man.