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 3 years ago

Taraweeh which is done nowby many Muslims was never performed by he Prophet Muhammad (SAWA), that is why you find that Umar Ibn Al-Khattab called it Bid'ah (Bukhari and Muslim).

The recommended Prayer is called Tahajjud which should be performed individually.

If some one forgets reciting Sura Al-Hamd, the Salaat is valid, but if he deliberately leaves reciting the Al-Hamd, then his Salaat is invalid.