It is narrated from Umm Hisham bint Harithah bin Nu'man (may Allah be pleased with her) that she stated: She heard the Prophet ﷺ reciting Surah Qaf on the pulpit on the day of Jumu'ah, and she memorized it due to the Prophet ﷺ frequently reciting it on the pulpit on the day of Jumu'ah.
Hadith Referenceمسند الإمام الشافعي / كتاب الجمعة / 439
Hadith Takhrijصحیح من غیر ھذا الطریق، اخرجہ مسلم، الجمعۃ، باب تخفیف الصلاۃ والخطبۃ (872) ، (873)۔