Sunan Ibn Majah 4168

Muhammad ibn al-Sabbah narrated to us; Sufyan ibn ‘Uyaynah informed us, from Ibn ‘Ajlan, from al-A‘raj, from Abu Hurayrah, attributing it to the Prophet (ﷺ), who said: “The strong believer is better and more beloved to Allah than the weak believer, though there is good in both. Be keen for what benefits you, and do not give up. If something overcomes you, say, ‘Allah decreed it, and what He willed He did.’ Beware of saying, ‘If only,’ for saying ‘if only’ opens the work of Satan.”