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 1 year ago

The persons who have right in inheritance in Islam are in degrees; the first degree is for the parents of the deceased and the sons and daughters of the deceased. If any son or daughter are alive when the deceased passed away, no inheritance for grand sons or grand daughters.

In your question, the inheritance goes to the living sons and daughters, and no right of inheritance for the grandchildren. Grandchildren would have share in the inheritance if the deceased did not leave any living son or daughter.