Is the husband's signature required on a married woman's Wasiyyat application?

Yes. The Wasiyyat made by a married woman must be signed by her husband if he is alive. Haq Mahr is considered part of her assets and should be specified in her Wasiyyat, along with a statement of whether it has been received or is still due. The husband's monthly income — and, if he is a Musi, his Wasiyyat number — must also be provided.