This dua is generated by Once Hazart Owais Qarni (RA). His name was Owais, he was known as Owais al-Qarni because he lived in a town called "Qarn" in Yemen. The Holy Prophet (PBUH), while speaking to Sahaba-Ikram (companions), said: "There is a person in my Ummah (followers) whose prayers would bring forgiveness to as many sinners as the number of hair of the sheep in the tribes of Rabia and Mazar." The two tribes were well known for raising sheep during the time of the Holy Prophet. The disclosure made the Sahaba-Ikram very curious. They asked the Holy Prophet about the name of that person and the place he lived in. The Holy Prophet first hesitated, but on their insistence told them the name of a person who lived in Qarn, Awais Qarni.

Whoever reads this dua after Fajr, asr and Isha will cross the bridge of sirat with ease, all his sins will be forgiven and whosoever keeps this dua with him will be safe from magic and every harm. And finally whoever recites this dua all his missing prayers will be forgiven.