Ramadan: How long has the greeting 'Assalam alaikum' existed for?

[Hanji]

Like how many year ago did people first start using it?

Thanks for answering, goodnight! xoxox

 

[~$uh@n@~]

introduction of 'salam' was done by Sara the queen of some place I don't remember, she wrote letter to some prophet.

 

[RuchjatK]

Salam Based on hadith we Musloms are recommended to give salam "assalamu alaykum": or the complete one "assalamualaykum wa rahmatullahi wa barakatuh" because it is a dua But if we receive it we have mandatory to answer the greeting in the same way or more complete It is existed since the coming of Islam during his era We will have rewards for Islamic greeting from Allah swt