(4) باب لِيَجْعَلْ آخِرَ صَلاَتِهِ وِتْرًا
Narrated `Abdullah bin `Umar:
The Prophet (ﷺ) said, "Make witr as your last prayer at night." (RU)
Reference (RU): Sahih al-Bukhari 998 (RU)
In-book reference (RU): Book 14, Hadith 9 (RU)
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 16, Hadith 112 (RU)