Narrated Qais:

Jarir said, "We were with the Prophet (ﷺ) and he looked at the moon--full-moon--and said, 'Certainly you will see your Lord as you see this moon and you will have no trouble in seeing Him. So if you can avoid missing (through sleep or business, etc.) a prayer before the sunrise (Fajr) and a prayer before sunset (`Asr), you must do so.' He then recited Allah's Statement: And celebrate the praises Of your Lord before the rising of the sun and before (its) setting." (50.39) Isma`il said, "Offer those prayers and do not miss them."

Narrated Jarir bin `Abdullah:

We were in the company of the Prophet (ﷺ) on a fourteenth night (of the lunar month), and he looked at the (full) moon and said, "You will see your Lord as you see this moon, and you will have no trouble in looking at Him. So, whoever can, should not miss the offering of prayers before sunrise (Fajr prayer) and before sunset (`Asr prayer)." Then the Prophet (ﷺ) recited: 'And celebrate the praises of your Lord before the rising of the sun and before (its) setting.' (50.39)