ANSWER:

If she makes it as a condition and he agrees to it as a condition and the witnesses testify that it was a condition, this is binding even if it was not written down. 

But if none of the above took place, this was not a condition and it is not binding.

QUESTION: If any matter agreed verbally while deciding to marry a man/woman, but they were not written down in the Nikah contract. Do those conditions have to be fulfilled as conditions by the spouses?e.g women asks if she can do halal job after marriage & the groom verbally says yes but not written & after marriage the groom says she can’t do the job & as it is not written so he is not sinful /obliged to