Fahishah, Sin, Transgression, Shirk and Lying about Allah are prohibited Allah says to His prophet (peace be upon him); قُلْ إِنَّمَا حَرَّمَ رَبِّيَ الْفَوَاحِشَ مَا ظَهَرَ مِنْهَا وَمَا بَطَنَSay:"(But) the things that my Lord has indeed forbidden are the Fawahish (immoral deeds) whether committed openly or secretly,Imam Ahmad recorded that Abdullah said that the Messenger of Allah (peace be upon him) said,لَاا أَحَدَ أَغْيَرُ مِنَ اللهِ فَلِذَلِكَ حَرَّمَ الْفَوَاحِشَ مَا ظَهَرَ مِنْهَا وَمَا بَطَنَ وَلَاا أَحَدَ أَحَبُّ إِلَيْهِ الْمَدْحُ مِنَ اللهNone is more jealous than Allah, and this is why He prohibited Fawahish, committed openly or in secret. And none likes praise more than Allah.This was also recorded in the Two Sahihs.In the explanation of Surah Al-An`am, we explained the Fahishah that is committed openly and in secret.Allah said next,وَالاِثْمَ وَالْبَغْيَ بِغَيْرِ الْحَقِّand Ithm, and transgression without right,As-Suddi commented,"Al-Ithm means, `disobedience'. As for unrighteous oppression, it occurs when you transgress against people without justification."Mujahid said,"Ithm includes all types of disobedience. Allah said that the oppressor commits oppression against himself."Therefore, the meaning of, Ithm is the sin that one commits against himself, while `oppression' pertains to transgression against other people, and Allah prohibited both.Allah's statement,وَأَن تُشْرِكُواْ بِاللّهِ مَا لَمْ يُنَزِّلْ بِهِ سُلْطَانًاand joining partners with Allah for which He has given no authority,prohibits calling partners with Allah in worship.وَأَن تَقُولُواْ عَلَى اللّهِ مَا لَا تَعْلَمُونَand saying things about Allah of which you have no knowledge.such as lies and inventions, like claiming that Allah has a son, and other evil creeds that you -- O idolators -- have no knowledge of.This is similar to His saying:فَاجْتَنِبُواْ الرِّجْسَ مِنَ الاٌّوْثَـنِSo shun the abomination (worshipping) of the idols. (22:30)