H10M40. The combination of these two letters/numbers plays an important role in the mathematical system of the Quran based on code 19. For the meaning of these letters see 1:1; 2:1; 40:1; 13:38; 46:10; 74:1.

The root of ARaBy (Arabic) is ARB, and also means "excellent" or "perfect" (See 56:37). Since the message of the Quran was sent to all humanity and jinns, the eloquence of the language of the Arabic Quran does not necessarily come from its being in the Arabic language, but its Arabic being ARB, that is, excellent or perfect. In other words, the message of this verse is not about the proper name Arabic, but about its literary meaning. Every Justin might not be just; every Mr. Smart may not be smart. Similarly, each Arabic text is not necessarily arabic (excellent). The language of the Quran is both Arabic and arabic, that is, flawless, and perfect. Though the Quran was revealed to an Arabic speaking prophet in Arabic, since it contains universal truth and is taught by the Gracious (55:2), it is a message to all humanity regardless of their language.

The word salaf (past, ancestors, predecessors) is currently used as a label by the radical Sunnis who reject sectarian jurisprudence, yet rely directly on hadith and sunna; they claim to be the followers of the prophet and his companions, whom they call salaf. The Salafi movement started with Ibn Taymiyya, a charismatic scholar who rejected some major tenets of orthodox teachings. Orthodox Sunni sects promote blindly following the fatwas or jurisprudence of a particular sect and discourage from interpreting and inferring directly from hadith. Ibn Taymiyya argued that every Muslim must have direct access to hadith books and learn their religion through studying them, rather than being bound by the views of earlier scholars. Though Salafis justifiably rejected many polytheistic teachings and rituals, such as sectarian jurisprudence, intercession and imploring shrines, they unfortunately indulged in fabricated hadith, and advocated a narrow (mis)understanding of the Quran, such as rejecting the use of metaphors. Since, they set hadith sources as partners with God in practicing Islam, they ended up with a religion that reflected a concoction of Arabic, Jewish and Christian culture from medieval times. The majority of salafis live in Saudi Arabia and they promote a Taliban-style tyrannical system that produces an ignorant, misogynistic and backward crowd who subject themselves to being herded like sheep by the moral police. As we noted in relation to the words hadith, sunna, and ijma, the word salaf too has negative connotations in the Quran. This is a miraculous prophecy of the Quran; major sects who abandoned the Quran by setting up various lists of "holy" idols and teachings as partners with God in His system, use labels and names that are convicted by the Quran. The word salaf in all its derivatives, occurs eight times (2:285; 4:22; 5:95; 8:38; 10:30; 69:24; 43:56), and in only one occurrence, here, is it used as a reference to a community of people who were ignorant, aggressive and oppressive. For the prophetic reference of the Quran regarding other sectarian labels, see: 33:38.

The Quran contains some hints regarding the time of the end of the world (20:15; 15:87). See 47:18