Kaba'ir and Sagha'ir, Doctrines
Standing
Concerns Meaning in the Attesting Source
Currently States Which acts count as grave sins has no closed list. A hadith received in both of the two principal collections names seven destroying things; manuals working from a criterion instead enumerate into the hundreds.
The Encyclopaedia of Islam, second edition, edited by P. Bearman, Th. Bianquis, C. E. Bosworth, E. van Donzel and W. P. Heinrichs (Brill, 2005), records that which acts count as grave sins, kaba'ir, has no closed list: a hadith received in both of the two principal Sunni hadith collections names seven destroying things, while legal manuals working from a criterion instead of a fixed list enumerate into the hundreds. The encyclopedia sets out two classical positions built from that same evidence: one confines the kaba'ir to the enumerated hadith list and treats the seven destroying things as definitive, the other treats that report as illustrative and defines a grave sin by criterion, as any act carrying a fixed legal penalty or an explicit threat of hellfire, curse or divine anger, a criterion applied in works such as Ibn Hajar al-Haytami's al-Zawajir to yield lists running to several hundred items.
Source The Encyclopaedia of Islam, 2nd edition, P. Bearman, Th. Bianquis, C. E. Bosworth, E. van Donzel and W. P. Heinrichs (eds.)