Riyad us Saliheen: Hadith 1050

We were sitting with the Messenger of Allah (ﷺ) when he looked at the full moon and observed, "You will see your Rubb in the Hereafter as you see this moon having no difficulty in seeing it. So try your best to perform the prayers before the rising of the sun and that before its setting."

[Al-Bukhari and Muslim].