This Surah is the first Surah in the Mufassal section of the Qur'an, according to the correct view. It is said that the Mufassal starts with Surat Al-Hujurat. Some common people say that the Mufassal starts with Surah `Amma An-Naba, (chapter 78), however, this is not true because none of the respected scholars ever supported this opinion. Aws (bin Hudhayfah) said; "I asked the Companions of Allah's Messenger () how they divided the Qur'an. They said; `Three, five, seven, nine, eleven, thirteen, and the Mufassal section as one.' '' This was recorded by Ibn Majah and Imam Ahmad. If one counts forty-eight Surahs, the next Surah will be Surah Qaf. The details are as follows: The ﴿first﴾ three Surahs are Al-Baqarah (chapter 2), Al `Imran (3), then An-Nisa' (4). The five are Al-Ma'idah (5), Al-An`am (6), Al-A`raf (7), Al-Anfal (8) and Bara'ah (or At-Tawbah) (9). The seven next Surahs are Surah Yunus (10), Hud (11), Yusuf (12), Ar-Ra`d (13), Ibrahim (14), Al-Hijr (15) and An-Nahl (16). The nine next Surahs are, Subhan (or Al-Isra' (17)﴾, Al-Kahf (18), Maryam (19), Ta Ha (20), Al-Anbiya' (21), Al-Hajj (22), Al-Mu`minun (23), An-Nur (24) and Al-Furqan (25). The next eleven Surahs are Surat Ash-Shu`ara (26), An-Naml (27), Al-Qasas (28), Al-`Ankabut (29), Ar-Rum (30), Luqman (31), Alif Lam Mim As-Sajdah (32), Al-Ahzab (33), Saba' (34), Fatir (35) and Ya Sin (36). The next thirteen are Surat As-Saffat (37), Sad (38), Az-Zumar (39), Ghafir (40), Ha Mim As-Sajdah (or Fussilat) (41), Ash-Shura (42), Az-Zukhruf (43), Ad-Dukhan (44), Al-Jathiyah (45), Al-Ahqaf (46), Al-Qital (or Muhammad) (47), Al-Fath (48) and Al-Hujurat (49). After that comes the Mufassal section, according to the Companions, may Allah be pleased with them all. Therefore, Surah Qaf (chapter 50) is the first of the Mufassal, just as we stated, and all praise is due to Allah and all favors are from Him.
Imam Ahmad recorded that `Umar bin Al-Khattab asked Abu Waqid Al-Laythi, "What did the Prophet recite during the `Id Prayer'' Abu Waqid said, "Surah Qaf and Surat Iqtarabat ﴿i.e. Surat Al-Qamar (54)﴾.'' Muslim and the Four Collectors of the Sunan collected this Hadith. Imam Ahmad recorded that Umm Hisham bint Harithah said, "For around two years, or a year and a part of another year, our oven and the oven of the Prophet was one and the same. I memorized Surah,
(Qaf. By the Glorious Qur'an.) from the tongue of the Messenger of Allah who used to recite it every Friday while standing on the Minbar delivering the Friday sermon to the people.'' Muslim collected this Hadith. Abu Dawud also recorded that the daughter of Al-Harith bin An-Nu`man said, "I only memorized Surah Qaf from the mouth of the Messenger of Allah who used to recite it in every Friday Khutbah. Our oven and the oven of the Messenger was one and the same.'' Muslim and An-Nasa'i collected this Hadith. Therefore, the Messenger of Allah used to recite this Surah during large gatherings such as the `Ids and during Friday sermons. He did so because this Surah contains news of the beginning of creation, Resurrec- tion, the Return, Standing (before Allah), the Reckoning, Paradise, the Fire, Allah's reward and punishment, lessons of encouragement, and lessons of discouragement. Allah knows best.
In the Name of Allah, the Most Gracious, the Most Merciful.