Does a man become a mahram to his son's wife through suckling?

It is forbidden for a man to marry his biological son's wife, based on the Almighty's saying: (and the wives of your sons who are from your own loins). Therefore, it is permissible for him to travel with her, be alone with her, and look at her face. As for the wife of a son through suckling, the majority of scholars are of the opinion that she is forbidden, just like the wife of a biological son. However, Sheikh Al-Islam Ibn Taymiyyah held the view that suckling does not affect affinity (marriage relations), and that the wife of a son through suckling is a stranger to the husband's father, so she should not uncover for him, nor should he be alone with her, nor travel with her. This is because the prohibition stems from affinity, not from lineage. This is the preferred opinion.