According to a traditional report transmitted by Abu 'z-Zubair, on the authority of Jabir ibn 'Abdi 'llah [al-Ansari] (may Allah be well pleased with him and with his father), Allah's Messenger (Allah bless him and give him peace) once said:
If someone performs two [voluntary] cycles of ritual prayer [rak'atain] at daybreak on a Monday-reciting the Opening Sura of the Book [Fatihat al-Kitab] once in each cycle, the Verse of the Throne [Ayat al-Kursi] one time, "Qul Huwa'llahu Ahad [Say: 'He is Allah, One!']" one time, and the Two Pleas for Divine Refuge [al-Mu'awwidhatain] one time each-and if, when he pronounces the salutation [idha sallama], he appeals ten times to Allah for forgiveness, and invokes His blessing upon the Prophet (Allah bless him and give him peace) ten times-Allah will forgive him all his sins.
According to another traditional report, this one transmitted by Thabit al-Bunani, on the authority of Anas ibn Malik (may Allah be well pleased with him), Allah's Messenger (Allah bless him and give him peace) once said:
If someone performs twelve [voluntary] cycles of ritual prayer [salla ithnatai 'ashrata rak'a] on a Monday, reciting the Opening Sura of the Book [Fatihat al-Kitab] in each cycle, and the Verse of the Throne [Ayat al-Kursi] one time-and if, when he has concluded his performance of the prayer [salat], he recites "Qul Huwa'llahu Ahad [Say: 'He is Allah, One!']" twelve times, and seeks forgiveness twelve times-an angelic voice will call for him on the Day of Resurrection [Yawm al-Qiyama], saying: "Where is So-and-so, the son of So-and-so? Let him step forward to receive his reward from Allah (Exalted is He) !" He will then be given, as the first part of his reward, a thousand fine articles of clothing. A crown will be placed upon his head, and he will be told: "Enter the Garden of Paradise!" A thousand angels will bid him welcome, each angel bearing a gift, and they will escort him on a tour of a thousand palaces constructed from glittering light.
