425 – ʿAlī ibn al-Ḥasan ibn Mūsā told me; he said: Abū al-Yamān al-Ḥimṣī narrated to us; he said: Ismāʿīl ibn ʿAyyāsh, on the authority of Muʿādh ibn Rifāʿah, on the authority of Dirʿ al-Khawlānī, on the authority of Abū Shaybah al-Muhrī, said: “The alternation of night and day is the ample capital of the perceptive.”