وعن ابن عمر رضي الله عنهما
قال: كان رسول الله صلى الله عليه وسلم يصلي من الليل مثنى مثنى، ويوتر بركعة من آخر الليل، ويصلي الركعتين قبل صلاة الغداة، وكأن الأذان بأذنيه
The Messenger of Allah (sallallahu alayhi wa sallam) used to perform his optional night prayers at night, two Rakah followed by two Rakah, and at the end he would conclude with an odd Rakah (Witr). Then he would perform two Rakah prayer before the dawn (Fajr) prayer after hearing the Adhan, and he would make them so brief as if he could hear the Iqamah being called.
Riyad as-Salihin 1106, Book 9, The Book of Virtues, Hadith 116. 1 min read