The chapter
Yathrib had waited through mornings of false alarms, the city climbing its rooftops at every rumor of the caravan. When he ﷺ finally came, the Ansar poured into the streets in their arms and their finery, and the daughters of the city sang. The tradition remembers the welcome in the couplets of Tala' al-Badru: "The full moon has risen over us from the passes of Wada'…", the muhaddithun note the report's chains are debated, and some date the song to the return from Tabuk; the Codex records both the beloved memory and its grading.
Every clan seized the halter of his camel: stay with us, in our strength and protection. His answer dissolved a hundred rivalries before they could begin: "Let her go her way, for she is commanded." Al-Qaswa walked, knelt once, rose, turned, and knelt finally at a drying-yard for dates belonging to two orphan boys of Banu Najjar, his mother's kin. He would not take it as a gift from orphans; he bought it at a fair price, and on that plot rose al-Masjid an-Nabawi, with the rooms of his household along its wall. He carried the bricks himself, chanting with his companions.
He lodged meanwhile with Abu Ayyub al-Ansari, taking the lower floor for the ease of his visitors, until Abu Ayyub and his wife, unable to bear walking above the Messenger of Allah, pleaded with him to take the upper room, and he did. And in those first days a young rabbi named Abdullah ibn Salam came to inspect the newcomer's face and heard his first public address in the city, four commands that fit in a breath and build a civilization: "O people: spread salam, feed food, keep the ties of kinship, and pray at night while people sleep, you will enter Jannah in peace." Ibn Salam said: "When I saw his face, I knew it was not the face of a liar."
Then the structural acts, in quick succession: the brotherhood (mu'akhah) pairing each Muhajir with an Ansari in a bond the early community treated as family; the covenant organizing the city's tribes and the Jewish clans into one defensive compact; and a marketplace free of the old monopolies. Within months, the refugee had become the head of a city-state, and the city had a new name: Madinat an-Nabi, the City of the Prophet. The Path's next node is the first collision with the world that had expelled him: Badr.