Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 12 months ago

He must fast the number of days which he is sure that he has missed. If he estimates that he missed between 3 to 6 days, he must fast three days as it is the days that he is sure that he missed. Fasting more will be a precaution ( Ehtiyat).