What are the major sins in Islam?

The Qur’an is filled with a detailed list of sins. The following sins have a place in every part of the Qur’an, especially the verse in Surayz.

Al-Mussillah

Ibn Ishaq said in his Fatawa al-Asma al-Islami:


The
Qur’an uses al-Mussillah for everything. One need not go on for pages about the verse or the surah. The sin is found in the omission of this sin, according to Ibn ‘Abbaas (may Allah be pleased with them).

Ibn ‘Abbaas said in al-Fatawa al-Mufradit: The Muslim is not required to give al-Mussillah in one’s speech. The Muslim is required to give al-Mussillah to each man and to women when speaking to a woman, to speak more softly to a woman, to speak more slowly and to speak with more reverence (dawa). He is reminded that this sin (al-Mussillah) will befall them, when they speak evil against the Prophet (blessings and peace of Allah be upon him).

Ibn ‘Abbaas said in al-Fatawa al-Musannaf: This sin is mentioned in Sura 7:116, as it is a great great sin (al-Mussillah). The Prophet (blessings and peace of Allah be upon him) was sent from his Lord with a lot of sins and great sins, and he was not exempt from them. This verse mentions al-Mussillah in this case.

Hudayb al-Khudaylani stated in al-Mudawwatul Madkar: The sin of al-Mussillah is a major sin, just as a minor sin, such as killing someone, is a major sin.

If, for example, you say to the Prophet (blessings and peace of Allah be upon him) to kill someone, he says to you: I am not asking you to say so; he does not have authority to tell you. He tells you to kill him. If, after giving him your advice, he again tells you to kill, then he is not only contradicting yourself, he is contradicting the Messenger of Allah, (blessings and peace of Allah be upon him).

Ibn ‘Abbaas (may Allah