Maybe a reasonable first approach would be to seek help for the mother. If you know that she is actively suicidal, with means and a plan, you have to contact the police and let them know. If she is...
Which prophet did you mean? If you meant prophet Muhammad (Peace and blessings be upon him and his household) his mother Amenah died when the prophet was the age.of 6 . :)
Only 5 mins. because the kittens need to survive and they cannot go that long without their mothers milk because their bellies need to be full and another tip is they WILL sleep after getting fed!