and Allah said "And proclaim the pilgramage among men; they will come to thee on foot and on every kind of camel. Lean on account of Journeys through deep and distant mountain highways" Surah 22 ~ Al Hajj Part 27
Almighty Allah also declared: All praises and thanks be to Allah Who Alone created the heavens and the earth, and originated the darkness and the light, yet those who disbelieve hold others as equal with their Lord. He it is Who has created you from clay, and then has decreed a stated term (for you to die). And there is with Him another determined term (for you to be resurrected), yet you doubt (in the Resurrection).
And He is Allah (to be worshipped Alone) in the heavens and on the earth, He knows what you conceal and what you reveal, and He knows what you earn (good or bad). And never an Ayah (sign) comes to them from the Ayat (proofs, evidences, lessons, signs, revelations, etc.) of their Lord, but that they have been turning away from it.
Indeed, they rejected the truth (The Quran and Muhammad) when it came to them, but there will come to them the news of that (the torment) which they used to mock at. Have they not seen how many a generation before them We have destroyed whom We had established on the earth such as We have not established you? And We poured out on them rain from the sky in abundance, and made the rivers flow under them. Yet We destroyed them for their sins, and created after them other generations." ( 6:1-6 Quran)
As the number of believers increased and the cause of the Prophet was strengthened by the conversions of many powerful citizens, the Prophet's preaching alarmed the Quraish. Their power and prestige was at stake. They were the custodians of the idols, which the Prophet had threatened to destroy; they were the ministers of the worship, which he denounced; in fact their existence and living wholly depended upon the maintenance of the old institutions. The Prophet taught that in the sight of his Lord all human were equal, the only distinction recognized among them being the weight of their piety.
Allah the Exalted said: O mankind! We have created you from a male and a female, and made you into nations and tribes, that you may know one another. Verily, the most honorable of you in the Sight of Allah is that believer who has At Taqwa (one of the Muttaqun, pious and righteous persons who fear Allah much, abstain from all kinds of sins and evil deeds which He has forbidden), and love Allah much (perform all kinds of good deeds which He has ordained. Verily! Allah is All-Knowing, All-Aware." ( 49:13 Quran).
The Quraish would have none of this leveling of distinctions, as it reflected upon their long inherited privileges. Accordingly, they organized a system of persecution in order to suppress the movement before it became firmly established. They decided that each family should take upon itself the task of stamping out the new faith on the spot. Each household tortured its own members or adherents or slaves who were supposed to have connected themselves with the new religion. With the exception of the Prophet, who was protected by Abu Talib and his kinsmen, and Abu Bakr, and a few others who were either distinguished by their rank or possessed some influence among the Quraish, all other converts were subjected to different sorts of torture. Some of them were thrown into prison, starved, and then flogged. The hill of Ramada and the place called Bata thus became scenes of cruel torture.