From the religious aspect, filthy things are those like wine and gambling.

From the religious aspect, filthy things are those like wine and gambling. Some are of the opinion that these are filthy from the intellectual aspect too....... “ Mufradat al-Quran; topic concerning رجس Page 187; Tehran edition. Ibn Athir, a renowned lexicographer writes in his book Al-Nihayeh as such: الرجس: القذر. وقد يعبر به عن الحرام و الفعل القبيح رجس refers to something filthy and sometimes it refers to forbidden and indecent acts.

An-Nihayeh-Fi-Gharib al-hadith wal-Athar 2/200; Egyptian edition 1383 A.H. Allama Ibn Manzur has said: الرجس: القذر. وقد يعبر به عن الحرام و الفعل القبيح والعذاب و اللعنه و الكفر رجس refers to filth. Sometimes, it is interpreted as forbidden and indecent acts, punishment, curse and infidelity. Lisan al-Arab al-Muhit; topic concerning رجس 1/1128.

Firuzabadi says: الرجس: القذر وكل ما استقذر من العمل، والعمل المؤدي إلى العذاب و الشك والعقاب و الغضب رجس refers to things, which are filth as well as every evil and polluted deed that leads to punishment, suspicion, evil retribution and anger. Al-Qamoos al-Muhit; topic concerning رجس 2/227; Egyptian edition.

وقال في البارع: وربما قالوا: الرجا والنجا، أي جعلوهما بمعنى Al-Mesbah al-Munir; topic concerning رجس 1/266. Ibn Farsi says: الرجس: القذر لانه لطخ وخلط Mu.’jam Maqa.’es al-Lugha 2/490. Hubaish Taflisi: “Know that “Rijs “ in the Quran has three aspects: The first aspect gives the meaning of gambling, idol, gambler’s dart and the second aspect denotes infidelity and hypocrisy while the third aspect signifies evil acts.

“ (Quranic Aspects /110 & 111.) (2) Here, we discuss only a few of their most brazen steps taken for concealing and omitting the terms of traditions wherein the Prophet has used the adjective of “Wasi” for Amir al-Muminin (a.s.).