Assalamualaikum warahmatullahi is a traditional Islamic greeting in Arabic, meaning peace be upon you and the mercy of God, and it is used by Muslims around the world in everyday conversation, prayer gatherings, and formal addresses. Online, Muslim creators have adopted the spoken greeting as a familiar way to open videos on YouTube, TikTok, and WhatsApp, where it instantly signals faith, respect, and community to the audience. Its continued use comes from that shared recognition: listeners hear the greeting and immediately understand the tone and values of what follows.