Sunan An-Nasa'i
Hadith #480
It was narrated that 'Irak bin Malik said:""I heard Nawfal bin Mu'awiyah say: 'There is a prayer which if a person misses it, it is as of he has been robbed of his family and his wealth.'"" Ibn 'Umar said: ""The Messenger of Allah (ﷺ) said: 'It is 'Asr prayer