(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. (ES)
Reference (ES): Sahih Muslim 733 b (ES)
In-book reference (ES): Book 6, Hadith 143 (ES)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1598 (ES)