Soft and durable tissue products containing a softening agent

A process for producing a fibrous product comprising:

• forming an aqueous suspension of cellulosic fibers, at least a portion of the cellulosic fibers having been treated with a softening agent comprising a polysiloxane containing a plurality of a first functional group;
• depositing the aqueous suspension onto a forming fabric to form a wet fibrous web;
• incorporating into the wet fibrous web a retention agent comprising a polymer containing a plurality of a second functional group, the second functional group comprising an amine group, an amide group, an anhydride group, an aldehyde group, an epoxy group, an epihalohydrin group, or mixtures thereof:
• subjecting the wet fibrous web to an energy source in an amount sufficient to cause the retention agent to associate with the polysiloxane;
• and
• drying the fibrous web.