as-salamu alaykum and Wa alaykumu s-salam

My comment: such beautiful meaning! All religious leaders teaches us love and peace only and we must focus on the real message only instead of focusing on ignorant people's belief system. 

Meaning: 

sa. laːm]) is an Arabic greeting often used by Muslims around the world translating to "and upon you be peace". It is a blessing given to another. It is the standard response to the as-salamu alaykum (ٱلسَّلَامُ عَلَيْكُمْ) greeting.

"Wa alaykumu s-salam" (or "Walaikum assalam") is an Arabic greeting that means "and upon you be peace". It is the traditional and expected response to the greeting "As-salamu alaykum," which means "peace be upon you". The response is a blessing and a way to acknowledge and return the peace to the person who greeted you first.