Believers must still go to the Sacred Mosque and perform Hajj even if idol worshipers fill it, because hundreds there believe in God alone.1, 2, 3, 4
Abraham and Ishmael established the shrine at Mecca as a focal point for the people and a sacred sanctuary for those who worship there.1, 2
Abraham's prayer that Mecca be provided with fruits was answered, and today all kinds of fruits and great wealth are found there.1, 2, 3
God made Mecca sacred by placing His shrine there, and He already decided that all believers worldwide face Mecca in prayer.1, 2
God commands believers to face the Qiblah in Mecca when they pray, and this commandment is very important and cannot be taken lightly.1, 2, 3
Going around the Kaaba or between Safa and Marwa is not idol worship because it is done by God's commandment, as the angels fell prostrate before Adam by command.1, 2, 3
Abraham and those with him worshiped God alone, then Satan gradually added idol worship until, by Muhammad's time, idols were placed in the Ka'bah that Abraham built.1, 2
Circling the Kaaba is not worship of it, because God permits it, just as the angels prostrated before Adam in obedience to God without worshiping Adam.1, 2, 3, 4
Hajj is done only in Mecca: men wear seamless clothes and women modest dress so rich and poor look alike, then circling the Kaaba, Safa and Marwa, Arafat, and Mina, steps mentioned in the Quran.1, 2, 3, 4
Facing the direction of Mecca is a Quranic commandment whose only significance is organizational, so worshipers do not face different directions; in the United States it is roughly southeast.1, 2, 3