do we need to make salam to a shia.and how must we give a shia dawa’h to follow the right path.
Shia are not Muslims while the Nabee of Allaah ﷺhas recommended his followers not to precede disbelievers in greetings. It is narrated on the authority of Abu Hurairah رضى الله عنه that the Nabee of Allaah ﷺsaid, “Do not precede them (Jews and Christians) in greeting and whenever you meet them on the way, force them on walking along a side”. (Abu Dawd Badun Fee Assalami Aaa Ahliz-Zimmah)
Therefore, a Muslim is not allowed to make Salaam to a Shia especially with Islamic greeting forms in normal condition. However, if a Shia greets a Muslim with Assalamo Alaikum, the Muslim should say only Wa Alaik/Hadakallah in reply. (Abu Dawd Badun Fee Assalami Aaa Ahliz-Zimmah) But if a Shia greets a Muslim with other forms of greeting then a Muslim can repeat the same in reply provided that these forms are not in line with Islaamic teachings.
As regard to giving Da’wah to a Shia, inform him of the fundamental articles of faith and gradually the creeds Shiasm differs from Islaam, with wisdom.