Madhambi makubwa ni yale yaliyokatazwa na Allah na Mtume Wake katika Qur'ani na Sunnah, pamoja na yale yaliyopokelewa kutoka kwa Waislamu wa mwanzo. Allah, Mtukufu kabisa, anaahidi kwa yule anayejiepusha na madhambi makubwa kuwa atamfutia madhambi yake madogo. Allah, Mwenye Nguvu, anasema: {Mkijiepusha na madhambi makubwa mnayokatazwa kuyatenda, tutakufutieni maovu yenu, na tutakuingizeni mahali pa heshima kubwa.} (An-Nisaa: 31)

Major sins are defined as what is forbidden by Allah and His Messenger in the Qur'an and the Sunnah in addition to what is narrated on the authority of early Muslims. Allah, the Most high, promises whoever avoids the major sins to expiate his minor sins. Allah, the Almighty says, {If ye (but) eschew the most heinous of the things which ye are forbidden to do, we shall remit your evil deeds, and admit you to a gate of great honour.} (An-Nisaa :31)

Katika andiko hili, Allah, Mtukufu, pia anaahidi kwamba atamwingiza Peponi yeyote anayejiepusha na dhambi kubwa.

In this text, Allah, the Most High, also promises whoever avoids the major sins to admit him to Paradise.

Allah, Mwenye Nguvu zote, anasema, {Wale wanaojiepusha na madhambi makubwa na machafu, na wanapokasirika, hata hivyo husamehe;} ()