"When his Lord called to him in the sacred valley," meaning: the blessed [valley], "Tuwa." Al-Hasan said: The meaning is: It was sanctified with blessing.

Muhammad said: Yahya did not clarify how to read (Tuwa), and Abu Ubayd mentioned that al-Hasan used to read it (Tiwan) with tanwin and a kasra on the ta', meaning: it was sanctified twice.