Is the expression of pleasure (tarḍī) specific to the Companions, and is it permissible to say "peace and blessings be upon him" for a person?

Question:
Is the expression of pleasure specific to the Companions, meaning that it is not permissible for me to say it for anyone other than a Companion on a continuous basis? And likewise, is it not permissible to say "peace and blessings be upon him" for anyone other than the Prophets, such as if I were to say, for example, "peace and blessings be upon my father"?

Answer:
As for expressing pleasure with anyone other than the Companions, it is permissible, and saying "peace and blessings be upon him" for anyone other than the Messenger is permissible, but not on a permanent basis. It should not be adopted as a slogan, as the Shi'ah do with 'Ali and their other imams, saying "peace be upon him" for them; this is their slogan.
As for saying "may Allah be pleased with so-and-so" at times, such as saying "may Allah be pleased with him" for Imam Ahmad, may Allah be pleased with him, or for Malik and Hanafi, who are among the imams of Islam, there is nothing wrong with it, provided it is not adopted as a slogan. Everything I have mentioned regarding saying "may Allah be pleased with him" is reserved for the Companions. And do not say "peace and blessings be upon him" constantly; rather, only at times. This is specific to the Messenger constantly. Yes.