Does Vaping Break Wudu sgvapedeliveryshop Does Vaping Break Wudu? Islamic Ruling on Ablution 2025 Can you smoke or vape when fasting? Just like eating and drinking, smoking or vaping is not permitted while fasting. If someone smokes or vapes while they are fasting, the fast will Does Smoking Break Wudu? Scholars' Opinions and Guidance Ulum Al Azhar Academy Does Vaping Break Your Fast?, Sayyid Kashmiri explains that, according to Sayyid Sistani, both vaping and smoking invalidate the fast as a matter of obligatory precaution.