Hafsa reported: Never did I see the Messenger of Allah (ﷺ) observing supererogatory prayer sitting till one year before his death when he would observe Nafl prayer in a sitting position, and he would recite the Surah (of the Qur'an) in such a slow-measured tone (that duration of its recital) became more lengthy than the one longer than this.

لا تلتقي أسانيد هذه الأحاديث عند راوٍ واحد، وهي على ٦ رواة في أعلاها.