(15) Ahmad bin Muhammad bin Sa’eed narrated from Ali bin al-Hasan from Ya’qoob bin Zayd from Ziyad al-Qandi from some of his companions that it was said to Abu Abdullah as-Sadiq : “Is the rising of as-Sufyani inevitable?” He said: “Yes, it is. Killing the pure innocent man, the sinking of the desert, the appearance of a hand in the sky, the call that comes from the Heaven and the appearance of al-Qa’im are also inevitable.” It was said to him: “What is the call?” He said: “A caller calling out the name of al-Qa’im and the name of his father .”