If you see a saw in your dream, it may symbolize a forgiving or merciful person who mediates or reconciles. The saw can also indicate a judge or marriage. It suggests a need to divide or review different aspects of your life. Such a dream may highlight the necessity for seeking compromise in your relationships or situations.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Saw" (page 374).
In a dream, a saw represents a forgiving person, or a mediator who negotiates back and forth. A saw in a dream also may represent a judge, an arbitrator, or marriage. A saw in a dream also means division of assets, a scale, or a perfidious
person who loves to create division between a husband and a wife, and to separates between them. A saw in a dream also represents a cunning person, unfair dealings between people, hypocrisy, evil, an informant, or sexual in tercourse. A saw in a dream also represents a helper, strength, profits, a public ordinance, a proclamation, a learned person, ora judge. A lumberman's saw in a dream represents an astringent and an austere headman. A marble saw in a dream signifies running out of tricks, or presenting an unsatisfactory proof. A handsaw in a dream represents a layman, a miller, or sieve merchant, etcetera.
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.