 The Tayy's allegiance during the ensuing Ridda Wars is a "widely disputed matter", according to historian Ella Landau-Tasseron.Some Muslim traditions claim all of the Tayy remained committed to Islam, while Sayf ibn Umar's tradition holds they all defected.Landau-Tasseron asserts that neither extreme is correct, with some Tayy leaders, foremost among them Adi ibn Hatim, fighting on the Muslim side and others joining the rebels.