(6) باب فَضْلِ صَلاَةِ اللَّيْلِ
It was narrated from Abu Bishr Ja'far bin Abi Wahshiyyah that:
He heard Humaid bin 'Abdur-Rahman say: "The Messenger of Allah (ﷺ) said: 'The best prayer after the obligatory (fard) prayers is prayer at night and the best fasting after the month of Ramadan is Al-Muharram.'" Shu'bah bin Al-Hajjaj narrated it in Mursal form.
Reference: Sunan an-Nasa'i 1614
In-book reference: Book 20, Hadith 17
English translation: Vol. 2, Book 20, Hadith 1615