(16) باب جَوَازِ النَّافِلَةِ قَائِمًا وَقَاعِدًا وَفِعْلِ بَعْضِ الرَّكْعَةِ قَائِمًا وَبَعْضِهَا قَاعِدًا
Zuhri reported this hadith with the same chain of transmitters, except this that he made a mention of one year or two years. (IT)
Reference (IT): Sahih Muslim 733 b (IT)
In-book reference (IT): Book 6, Hadith 143 (IT)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1598 (IT)