The Ornaments of Gold - 43:61 He (Jesus) is a source of knowledge and a sign about the Hour. So do not doubt about it (the Hour) and follow me. That is the right way.
Sign about the hour (the end of the world) of the son of Mary and his mother:
Mary/19:19 "(The angel said:) "I am a messenger from your Lord, commissioned to give you a pure son."
Mary/19:20 "He said, "How can I have a son when no human hand has touched me and I have not been unchaste?"
Mary/19:21 "It is so,"he said, "Your Lord said, ´It is easy for me. We will make him a sign for the people and a mercy from Us. This is a matter that has already been decided."

The Prophets/21:91 And the woman who guarded her chastity. Indeed We breathed into her from Our spirit. And We made her and her son a sign to the whole world.

The Believers/23:50 And We made the son of Mary and his mother a sign, and We gave them shelter on a hill with a spring, suitable for habitation.

The Ornaments of Gold/43:61 He (Jesus) is a source of knowledge and a sign about the Hour. So do not doubt about it (the Hour) and follow me. That is the right way.