(24) باب افْتِتَاحِ صَلاَةِ اللَّيْلِ بِرَكْعَتَيْنِ
Narrated Abu Hurairah:
The Messenger of Allah (ﷺ) as saying: When one of you gets up at night, he should begin the prayer with two short rak'ahs.
Reference: Sunan Abi Dawud 1323
In-book reference: Book 5, Hadith 74
English translation: Book 5, Hadith 1318