Muslim

Hadith Commentary: Benefits and Issues: The recitation regarding five sucklings (رضعات) was also abrogated in the very last period of the life of the Messenger of Allah (sallallahu alayhi wa sallam). However, those individuals who had not yet come to know of the abrogation continued to recite it. But since their recitation had been abrogated, it was not written in the Imam’s codex (Mushaf Imam), and there is consensus of the Ummah on this. However, its ruling remains in effect.

Hadith Authentication: [وأخرجه مسلم 1452، من حديث ما لك به]
Jurisprudential Explanation:
➊ The abrogated verse (regarding ten sucklings) is the very verse that was written on a sheet and kept under the pillow of Sayyidah Aisha radi Allahu anha, which was later eaten by a goat. See [مسند أحمد 269/6 ح36316 وسند حسن، سنن ابن ماجه : 1944]
● The recitation of the verse regarding five sucklings was also abrogated, but its ruling remained.
● If the verse whose recitation was abrogated had not been removed in this manner, there was a fear that it might be written into the Qur'an. This does not prove the belief of the Rafidah who claim that the Qur'an originally had forty parts, of which ten parts were eaten by a goat. The statement of the Rafidah is completely false.
➋ Also see [الموطأ حديث : 310، البخاري 2646، ومسلم 1444]
➌ The aforementioned verse was abrogated during the lifetime of the Prophet sallallahu alayhi wa sallam, but Sayyidah Aisha radi Allahu anha was not aware of it.
● It is evident from this that even the greatest scholars may remain unaware of certain evidences.
➍ In the Qur'an and Hadith, abrogation (naskh) has occurred in some rulings.
➎ It is entirely possible that the abrogating evidence (nasikh) may not reach some people, and they may continue to act upon the previous (abrogated) ruling.
➏ After the arrival of the abrogating evidence and knowledge of it, it is not permissible to act upon the abrogated ruling.