28-75 (The author of the book narrated) my father - may God be pleased with him - narrated that Sa’d ibn Abdullah quoted on the authority of Ahmad ibn Muhammad ibn Isa, on the authority of Abu Himam Isma’il ibn Himam that Al-Ridha (s) asked someone, “What do you think ‘as-Sakina is?” The people present were unable to answer. They said, “May we be your ransom! What is it?” The Imam (s) said, “It is a breeze that comes from Paradise. It has the looks of a man who accompanies the Prophets (s). It was descended upon Abraham (s) while he was building the Kaaba. It established the details about the location (of Kaaba) and how to build it, so Abraham (s) built it based on that.”