In this text Ayatullah Dastghaib has exhaustively explained the phenomenon of sin, the classification of sins, the necessity of avoiding them, He has described fifty different types of Greater Sins such as: association with God (Shirk), fornication, drinking alcohol, gambling, disrespect towards parents and cutting ties with relatives.
See also volume 2 and 3 of this text.
Link to volume 2: https://www.al-islam.org/greater-sins-volume-2-sayyid-abdul-husayn-dastg...
Link to volume 3: https://www.al-islam.org/greater-sins-volume-3-sayyid-abdul-husayn-dastg...

Greater Sins Volume 1 Author: Sayyid Abdul Husayn Dastghaib Shirazi Translator: Sayyid Athar Husayn S.H. Rizvi [email protected] Year of Publication: 2001 Published by: Islamic Study Circle P.O. Box No. 5011 Mumbai 400 009 India Mumbai 400 009 India