Mus'ab ibn Umair, may Allah be pleased with him.
Mus'ab bin 'Umair
The Masjid-e-Qubah, built by the Prophet Muhammad (pbuh) very close to Madinah
Medina means "city". It is used as shorthand for Medinat an-Nabi, which means City of the Prophet. It has this name because Prophet Mohammed established the first Umma or Muslim community in Medina.
Ibn Aws al-Aslani RA, a companion of the prophet PBUH, had this name.
"Yathrib" is the old name for Medina (Al-Madinah Al-Monawarah) city in Saudi Arabia, before the migration of Prophet Muhammad. Worth mentioning that it's not preferable to name the city "Yathrib" now. The name itself comes from the family head (Yathrib Ibn Abeel) which was said to be the first family to inhibit this area. They are descendants of Prophet Noah.
yasarab
Yathrib is another name to the city of Madinah in Arabia.
This journey is called Hijrah .
The departure to Madinah is known as the Hijra'.
Another name for a companion is a friend or a mate.
The name of Robinson Crusoe's companion was Friday.
Hazrat Jabir ibn Abdullah al-Ansari (ra) andHazrat Hudhaifa al-Yamani (ra)