They will say, "Three, their dog (was) the fourth of them." And (others) will say, "Five, their dog (was) the sixth of them, " guessing at the Unseen. (Some others) will say, "Seven, and their dog (was) the eighth of them." Say, "My Lord knows best their right number; none knows them, except a few." So do not wrangle about them, except in outward wrangling, and do not ask any of them for a pronouncement on them.