It was narrated from Muhammad bin 'Abdur-Rahman that:
The daughter of Harithah bin An-Nu'man said: "I memorized 'Qaf. By the Glorious Qur'an.'" From the mouth of the Messenger of Allah (ﷺ) when he was on the minbar on Friday." (ES)
App reference (ES): Book 14, Hadith 48 (ES)
English reference (ES): Vol. 2, Book 14, Hadith 1412 (ES)
Arabic reference (ES): Book 14, Hadith 1422 (ES)