'Abdullah bin 'Amr bin Al-'as (May Allah be pleased with him) reported:
Messenger of Allah (ﷺ) said to me, "O 'Abdullah! Do not be like so-and-so; he used to get up at night for optional prayer but abandoned it later."[Al-Bukhari and Muslim].
App reference: Book 2, Hadith 12
Arabic/English book reference: Book 2, Hadith 692