Is semen retention imitating the kuffar ? Semen retention is the practice of avoiding ejaculation, like one who having sex with his wife or masturbating (ik is haram) , but he avoid the ejaculation, so he just want to feel pleasure and he Not ejaculation because he hold/avoid ejaculated, is it imitating the kuffar because the founder of this Pratice is from Taoism master if I'm not mistaken. So is it imitating the kuffar and haram?

All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.

Semen retention is not considered an imitation of the non-Muslims. The forbidden imitation of the non-Muslims is only in matters that are peculiar to them.

Semen retention is not something specific to non-Muslims.

Allah knows best.