'Abdullah bin 'Amr bin Al-'as (May Allah be pleased with them) 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]. (DE)
Arabic/English book reference (DE): Book 1, Hadith 154 (DE)