Concluding a marriage contract for a deaf person

Q 3: A deaf-mute man would like to marry, how can the Ma'dhun (marriage registrant) conclude the contract of his marriage? It may be worth mentioning that the concerned man is illiterate.

(Part No. 18; Page No. 89)  A: The contract of marriage of a deaf-mute person is to be done by meaningful signs that are usually used for communicating with them in matters of their food, drink, etc. This is because in such a case meaningful signs constitute a substitute for speech. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.