I heard from a friend that he had a cousin who recently got silently / unofficially terminated because by his new company because he couldn't report to work due to him being involved in an accident.

After like joining for 1 week+ and he was on his way to work, he was involved in a quite major road accident and he is still recovering. He can't really talk or move for 1 week. The family did inform the company HR and his superior and they all just gave words of encouragement like "Hope he recovers soon" "Get Well soon".

Since he joined in the middle of the month, he was supposed to receive salary (1/2 month) by end of the month (31st August) but the wife checked his account until 7th Sept, no salary was in. So she called the company, the superior said that they decided to terminate him due to breach of contract (unable to show up for work as there's a major project due) and that they have to wait for him to recover so he can get him to sign on the termination notice. The wife was very furious, wanted to go to Labour Court and sue but the person's mother is advising against it since they do not value him already, no point to sue for that half month.

Is this actually doable?

According to story, he still in probation. Just 1 week+ enter company.