It is narrated from Sayyiduna Khalid (may Allah be pleased with him) that he saw the Messenger of Allah (peace and blessings be upon him) leaning on a bow or a staff when he came to the Muslims. He says: I heard him reciting this Surah «‏‏‏‏وَالسَّمَاءِ وَالطَّارِقِ» ‏‏‏‏, so I had memorized this Surah in the days of ignorance while I was still a polytheist. Then I recited it after becoming a Muslim. Then the people of Thaqif called me and asked, "What have you heard from this man (Muhammad, peace and blessings be upon him)?" So I recited this Surah to them. Then the Qurayshi who were sitting with them said, "We know our companion better; if we considered his call to be true, we would have followed him."