Is emigration (Hijra) from the land of disbelief to the land of Islam obligatory?

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Emigration from the land of disbelief to the land of Islam remains a ruling obligation until the Day of Resurrection, according to the general consensus of scholars. This obligation is strongly supported by the divine command found in the Quran: {Indeed, those whom the angels take in death, while they were wronging themselves, [they] will ask, "In what condition were you?" They will say, "We were oppressed in the land." [The angels] will say, "Was not the earth of Allah spacious enough for you to emigrate therein?"} (Quran 4:97). Furthermore, a tradition states that the Prophet, peace be upon him, declared, "I am free from any Muslim who resides among polytheists; let them not see each other's fires," implying separation from the land where one cannot manifest Islam. The obligation of Hijra continues as long as repentance remains open, and repentance remains open until the sun rises from the west.