(16) باب جَوَازِ النَّافِلَةِ قَائِمًا وَقَاعِدًا وَفِعْلِ بَعْضِ الرَّكْعَةِ قَائِمًا وَبَعْضِهَا قَاعِدًا
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. (IT)
Reference (IT): Sahih Muslim 733 a (IT)
In-book reference (IT): Book 6, Hadith 142 (IT)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1597 (IT)