سعيتُمyou strove فأدركتُمso you succeeded بصالحِthrough the goodness of سعيكُمyour striving
سعيتُم فأدركتُم بصالحِ سعيكُم
وأدركand succeeded قومٌpeople غيرُكمother than you بالمقادرby fate's decrees
وأدرك قومٌ غيرُكم بالمقادر
You strove and succeeded through your worthy efforts;
and others succeeded by the decrees of fate.