Are there any sayings that wipe away all sins, such as one who recites Surat Al-Ikhlas 100 times?

Among the sayings that erase sins is: "Subhan Allah wa bihamdih (Glory be to Allah and with His praise)" one hundred times, and sins will be erased, even if they are like the foam of the sea. And among them are Tasbih (glorifying Allah), Tahmid (praising Allah), and Takbir (magnifying Allah) after every prayer, and saying: "La ilaha illa Allah wahdahu la sharika lah, lahu al-mulk wa lahu al-hamd wa huwa 'ala kulli shay'in qadir (There is no god but Allah alone, He has no partner. To Him belongs sovereignty and to Him belongs praise, and He is over all things competent)" completing one hundred, and sins will be forgiven, even if they are like the foam of the sea. These deeds expiate minor sins. As for major sins, they require repentance, or the execution of the prescribed punishment (Hadd), or Allah's grace with forgiveness.

Scholars differed regarding the forgiveness of major sins by Hajj. Some hold the view that it only expiates minor sins, while others believe it expiates both major and minor sins.

There are deeds that are equivalent to the reward of Hajj and Umrah, such as praying Fajr in congregation, then remembering Allah until sunrise, and then praying two rak'ahs. This is like the reward of a complete Hajj and Umrah.

As for the expiation of sins by reading "Qul Huwa Allahu Ahad (Say: He is Allah, [who is] One)," weak hadiths have been reported concerning it.