Ibn Abi Umayr said that Jamil ibn Darraj explained this, saying: "If nearly three months pass-lacking only a day-and then she menstruates, and again nearly three months pass-lacking only a day-and she menstruates, and then once more nearly three months pass-lacking only a day-and she menstruates, then in this case, her waiting period is counted by menstruation and not by months. But if three full white months pass without menstruation, then she is separated."