(1) باب صَلاَةِ الْمُسَافِرِينَ وَقَصْرِهَا
Ya'la b. Umayya reported:
I said to 'Umar b. al-Khattab, and the rest of the hadlth is the same. (RU)
Reference (RU): Sahih Muslim 686 b (RU)
In-book reference (RU): Book 6, Hadith 5 (RU)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1462 (RU)