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 2 months ago

When you believed in the fact that Ahlul Bayt (AS) are the real divine leaders of Islam after the Prophet Muhammad (SAWA) and followed them, you don't need to declare that in the form of Shahada. You should be already doing that in Azan أذان and Iqama إقامه.

It is good to say that again if you wish but it is not a condition for being a follower of Ahlul Bayt (AS) as far as you believe in it.