§ 622 [Facts in Written Instruments Conclusively Presumed True]

When you sign a written agreement, both you and the other party are bound by the facts stated in that document. Neither side can later go to court and argue that those stated facts are wrong or untrue.

There is one exception to this rule. If the document states a price or payment amount (called "consideration"), that part can still be questioned or challenged in court. So if a contract says you paid $1,000 for something, someone could argue the real amount was different.

This rule also applies to people who later take over the rights of the original parties, such as someone who inherits property or buys a business. They are also bound by what the original document says.