Tafseer Ibn Khatheer - Sorah Al-Muddaththir ( The One Enveloped )

وَاللَّيْلِ إِذْ أَدْبَرَ (33) (Al-Muddaththir ( The One Enveloped ))

أَيْ وَلَّى .

Source : http://www.quraninformation.com/t-74-1-33.html