Imam Anwar al-Awlaki
Sheikh Anwar speaks about the necessity of understanding and performing Hijra for the sake of Allah. Surah/Chapter 008 – Al-Anfâl. Verse 72. English Translation of the Meaning(The Noble Qur’an) Lo! those who believed and left their homes and strove with their wealth and their lives for the cause of Allah, and those who took them in and helped them; these are protecting friends one of another. And those who believed but did not leave their homes, ye have no duty to protect them till they leave their homes; but if they seek help from you in the matter of religion then it is your duty to help (them) except against a folk between whom and you there is a treaty. Allah is Seer of what ye do.