The Messenger of Allah ﷺ said to the Muslims, "I have been shown the place of your migration, a land of palm trees between two lava plains," referring to the two harrahs. So those who were going to migrate set out for Medina, and most of those who had previously migrated to the land of Abyssinia returned to Medina.
قال رسول الله ﷺ للمسلمين إني أريت دار هجرتكم ذات نخل بين لابتين- وهما الحرتان- فهاجر من هاجر قبل المدينة، ورجع عامة من كان هاجر بأرض الحبشة إلى المدينة.
Bukhari narrated it in the Chapter on Virtues (3905) from Yahya bin Bukayr, who said, Layth narrated to us, from Aqeel. Ibn Shihab said, Urwa bin Zubayr informed me that Ayesha said, and she mentioned it within a long hadith, in a story that will come in the chapter on the family of Abu Bakr concerning the preparations made for the migration.As for what is narrated from Jareer bin Abdullah, from the Prophet ﷺ, who said, "Allah revealed to me, 'Whichever of these three you settle in will be your home of migration, Madinah, Bahrain, or Qinnasrin,'" this is very daif. Tirmidhi narrated it (3923) from Husayn bin Hurayth, who said, Fadl bin Musa narrated to us, from Isa bin Ubayd, from Ghaylan bin Abdullah Amiri, from Abu Zura bin Amr bin Jareer, from Jareer bin Abdullah, and he mentioned it. Tirmidhi said, "This is an isolated hadith, we do not know it except through the hadith of Fadl bin Musa, Abu Ammar alone narrated it." Abu Ammar is Husayn bin Hurayth, the teacher of Tirmidhi, and he is trustworthy, so his being the sole narrator does not harm the hadith. Rather, its defect lies in Ghaylan bin Abdullah Amiri. Ibn Hibban mentioned him in Thiqat (7/311) and said, "He narrated a rejected hadith from Abu Zura concerning the migration."I say, Hakim also narrated it through this route (3/302) and said, "The chain is sahih." Moreover, it contradicts what is established in the sahih concerning the mention of Yamama. As for Qinnasrin, it belongs to the land of Sham.The Inhabitants of MadinahThe inhabitants of Madinah included the Arabs and the Jews, and historical records do not clearly establish which of them settled there first. However, Arab geography indicates that Madinah was never, at any time, devoid of inhabitants, since it is the nature of the Arabs to move continuously from place to place in search of water and pasture.The Arab tribes of Madinah were known by the names Aws and Khazraj, and they belong to the tribe of Azd in Yemen. History does not precisely fix the time of their departure from Yemen, but given their numbers and their established presence in the land of Madinah, it is estimated that they migrated there somewhere between two and a half and three centuries before the mission of the Prophet ﷺ. There were continuous wars between them over control of the cultivated lands of Madinah and dominance over it, until Islam came and united their hearts.As for the Jews, we see no reason for their settling in Madinah except that they found in their books, and heard from their scholars, that the description of the land which would be the place of migration for the prophet of the end times matched Madinah. So when the time of the Prophet's ﷺ emergence drew near, they set out in search of this land. They reached Tayma and found palm trees there, so a group of them settled there. Another group thought it was Khaybar, so they settled there. Then the noblest and largest group among them continued on, and when they saw Yathrib with its palm trees, they said, "This is the town to which the Prophet ﷺ will migrate." So Banu Nadir settled at Bathan, and Banu Qurayza and Nadir settled at Mudhaynib and Mahzur. Wafa Wafa by Samhudi (1/160).Muhammad bin Ishaq said, Asim bin Umar bin Qatada narrated to me, from an elder of Banu Qurayza, who said, "Do you know what caused the Islam of Usayd and Thalaba, the two sons of Saaya, and Asad bin Ubayd, a group from Huzayl? They were not from Banu Qurayza nor from Nadir, they stood above that." I said, "No." He said, "A man from Sham, one of the Jews, came to us, called Ibn al-Hayban, and he stayed among us. By Allah, we never saw a man who did not pray the five prayers better than him. He came to us two years before the mission of the Messenger of Allah. Whenever we suffered drought and rain grew scarce for us, we would say, 'O Ibn al-Hayban, go out and pray for rain for us.' He would say, 'No, by Allah, not until you first send forward an offering of charity before your going out.' We would say, 'How much?' He would say, 'A saa of dates or two mudd of barley.' So we would bring it out, then he would go out to the open ground of our harra, and we with him, and he would pray for rain. By Allah, he would not rise from his seat before the clouds had passed over. He did that not once, nor twice, nor three times.Then death came upon him, and we gathered around him, and he said, 'O assembly of Jews, what do you think brought me out of the land of wine and bread to the land of hardship and hunger?' They said, 'You know best.' He said, 'I only left expecting the emergence of a prophet whose time has now drawn near. This land is his place of migration. So follow him, and do not let anyone precede you to him when he appears. O assembly of Jews, he will be sent with the shedding of blood and the taking captive of the children and women of those who oppose him. Let that not deter you from him.' Then he died.Then, on the night when Qurayza was conquered, those three young men, who were mere youths, said, 'O assembly of Jews, by Allah, this is indeed what Ibn al-Hayban told you about.' They said, 'It is not him.' They said, 'Yes indeed, by Allah, this is his very description.' Then they came down, and accepted Islam, leaving behind their wealth, their children, and their families."Ibn Ishaq said, "Their wealth was in the fortress with the polytheists, and when it was conquered, it was returned to them." Dalail Nubuwwah by Bayhaqi (2/80–81).They were people of craft and industry, and within a short time they managed to take control of vast agricultural lands, and they fortified themselves in their strongholds for fear that the Arabs might turn against them, because their tyrannical nature always drove them toward deceiving and cheating their neighbors. It has been established that they used to threaten their neighbors with the awaited prophet, but when the Prophet ﷺ was sent, they disbelieved in him, even though they recognized him just as they recognized their own sons.Razin related from Sharqi that the Jews numbered a little over twenty tribes. Wafa Wafa (1/165). The large tribes were, Banu Nadir, whose men numbered seven hundred, Banu Qurayza, whose men also numbered seven hundred, and Banu Qaynuqa, whose men numbered nine hundred.