Is it permissible to shake hands with a non-mahram women who is advanced in age (qawa‘id) and do not have high hopes of getting married? What is the approximate age for qawa‘id?
Answer
It is not permissible to touch the body of a non-mahram woman at all, except when necessary. There is no specific age for the qawa‘id because it varies from one woman to another; the criterion [of defining the qawa‘id] is what has been mentioned in the [Qur’anic] verse: she should be advanced in age and do not aspire for marriage (24/60).