Is saying "with healing" after drinking water an innovation?

Supplicating for healing and good health is generally permissible. Al-Shawkani narrated that one should supplicate for a drinker after they have finished drinking, saying: "May it be wholesome and salutary" (hani'an mari'an). He deduced this from the action of the Prophet (peace be upon him), who used to breathe three times after drinking and say: "It is more wholesome, more salutary, and more healing." This is not considered an innovation.