This is an action on a promissory note. Respondents admit the giving of the note but deny that it has not been paid, and allege that it was given as a part of the consideration for the purchase of certain land and a water right, and in their cross-complaint, allege in substance:
That on or about the 31st day of May, 1911, they purchased from appellant certain lands and a water right; and as an inducement thereto appellant verbally represented to respondents that there was a good and 'sufficient water right for the irrigation of 250 acres of the land; that respondents relied upon the representations and purchased the land and water right; that appellant failed and neglected to furnish any *91water right, and respondents were compelled to, and did purchase a water right for the irrigation of 250 acres, paying therefor fifteen hundred dollars ($1500), which was alleged to be the amount of the damage; that at the time of giving the promissory note it was mutually verbally understood and agreed that there was to be a settlement of the question of water right when the note became due.
The answer to the cross-complaint put in issue the allegations thereof and, in addition to certain affirmative matter, not material here, alleged that in November, 1912, when one of the notes became due, respondents began making complaints with reference to the water right mentioned in the cross-complaint. For the purpose of finally settling all disputes between the parties a written contract was entered into on the 29th of November, 1912, wherein appellant agreed to extend the t’ime of payment of the note then due for the period of one year. This agreement contains the following stipulation: “In consideration of the foregoing extension of time for the payment of the said note, the party of the second part, as a copartnership and each and both firm members thereof both as copartners and individually, does and do hereby expressly waive, satisfy, cancel, relinquish, discharge, and surrender each, any, and all claims, offsets, setoffs, counterclaims, choses in action, causes of action, debts, remedies, or rights to money, property, damages, or legal or equitable relief that it, they, or either of them, has or have against the party of the first part at the date of this agreement or at any time heretofore.”
The cause was tried to a jury, who returned a verdict for respondents on their cross-complaint and judgment was entered thereon.
This appeal is from the judgment. Numerous errors are assigned in appellant’s brief, but it will be unnecessary to discuss all of them, as a determination of the 8th, 9th, 10th and 11th assignments will necessarily dispose of the- ease. These are in substance:
That the court erred in refusing to instruct the jury to return a verdict for plaintiff; in refusing to set aside the *92verdict, and in entering judgment for respondents; and that the evidence is insufficient to support the verdict or the judgment.
The whole case turns upon the effect to be given the written agreement of November 29, 1912, pleaded in the answer to the cross-complaint. The material part of this agreement has been quoted above. It is clear that if it is to be construed and given the effect that the broad and inclusive scope of its terms would seem to demand, it effectually closes every avenue of defense which respondents may have had prior to the date of its execution, or which may be in any manner brought within the issues sought to be raised by their answer and cross-complaint, but it is contended by respondents that the agreement does not express the real intention of the parties, that it was never intended to include any waiver of their alleged claim with reference to the water right, and upon this theory they were permitted to introduce oral evidence to that effect, over the objection of the appellant.
The trial court, proceeding upon the theory that such evidence was admissible and evidently regarding the weight and sufficiency thereof as matter peculiarly within the province of the jury, overruled the motion for an instructed verdict, refused to set aside the verdict and gave respondents judgment. But, in the absence of proof of imposition, fraud, duress, undue influence, mutual mistake or of unilateral mistake fostered by misrepresentation, the true rule, both upon principle and as settled by the great weight of authority, is that: “Where a release is contractual and general in its terms and there is no limitation by way of recital or otherwise, the releasor may not prove an exception by parol.....” (3 Elliott on Contracts, sec. 2061, p. 248; 17 Cyc. 621; 10 R. C. L. 1021.)
Nor will one be relieved from the terms of a contract on the ground of mistake due to his negligence when it was within his power to have a stipulation inserted in the agreement which would have fully protected him. He is bound to assume any risk he might have provided against in the contract. (1 Elliott on Contracts, sec. 110, p. 192.)
*93Respondents do not dispute the execution of this.contract. In fact, the respondent who signed it testified that he read the instrument before signing it. It follows that under the rule above stated the oral evidence referred to should have been excluded, and the refusal of the trial court to instruct the jury to return a verdict for appellant, and the refusal to' set aside the verdict, and the subsequent action of the court in entering judgment for respondents, were erroneous.
In this case it will be necessary for the trial court to determine what is a reasonable attorney’s fee to be allowed appellant and thereafter enter judgment as prayed for in appellant’s complaint. (Exchange Stake Bank v. Taber, 26 Ida. 723, 145 Pac. 1090.)
The judgment is reversed and the cause is remanded, with instructions to the trial court to cause proceedings to be had in accordance with the views herein expressed. Costs are awarded to appellant.
Morgan and Rice, JJ., concur.