الكبائرُ سَبعٌ : قَتلُ المؤمِنِ مُتَعَمِّداً ، و قذفُ المُحصَنَةِ ، و الفِرارُ مِنَ الزَّحفِ ، و التَّعَرُّبُ بعدَ الهِجرَةِ ، و أكلُ مالِ اليتيمِ ظُلماً ، و أكلُ الرِّبا بعدَ البَيِّنَةِ ، و كُلُّ ما أوجَبَ اللّهُ عليهِ النارَ .
Imam Ja‘far al-Ṣadiq (as):
There are seven grave sins: intentionally killing a believer, falsely accusing a chaste woman of fornication, fleeing from the midst of a battle, returning to a state of renegation after belief, unjustly usurping the property of the orphan, devouring usury after knowledge of its prohibition, and everything else that Allah has threatened to requite with obligatory punishment in the Fire.
Source:
al-Kāfī
Vol2
P277
ID: 27347