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... Answer updated 3 years ago

Only Shirk wipes out previous good deeds ( لئن أشركت ليحبطن عملك) (if you do Shirk, your deeds will be invalidated).

Shirk has degrees among which Riyaa' ( showing off good deeds for the sake of people).