Source: The Great Interpretation of Dreams (Ibn Sirin)
(By analogy) A bank in a dream indicates a place for saving money and trusts. It may indicate a rich man or a strong institution. Entering it indicates seeking money or security.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
(By analogy) A bank indicates trust and financial security. Depositing money in it indicates saving money, and withdrawing it indicates needing it.
Source: Signs in the Science of Expressions (Ibn Shaheen)
(By analogy) A bank is interpreted as a rich and trustworthy man. Dealing with it indicates financial benefit.