What is wallahi?

"Wallahi" is an Arabic term that translates to "By Allah" in English. It is often used as an oath or a promise, similar to saying "I swear to God" in English. This phrase is commonly used among Arabic-speaking communities and Muslims worldwide to emphasize the truthfulness or sincerity of a statement. In many contexts, invoking God's name adds a significant level of seriousness to the speaker's words, as per Islamic beliefs, it is important to be truthful and honest when swearing by God.