Like with many other surahs, Sura Al-Waqia also has benefits from recitation:
Abdullah ibn Mas'ud reported that the Prophet (salAllahu alayhi wasalam) said, "Whoever recites surah al Waqiah at night would never encounter poverty" [Ibn as-Sunni 620, Bayhaqi]
The Prophet Muhammad (salAllahu alayhi wasalam)also said:
"Surah al Waqiah is the Surah of Wealth, so recite it and teach it to your children" [Ibn Asakir]