Muslims angry Coptic Bishop Bishoy said they were guests in Egypt and questioned Koran 5:7

 Muslims protested in Egypt and insulted Christians by throwing shoes¹ at picture of  Coptic pope Shenouda III in Alexandria, after Coptic Bishop Bishoy reportedly said they were "guests of the Christians,"² and suggested Koran verse 5:17 was inserted by Caliph Uthman¹. Islamic Research Council of Al-Azhar university¹, a key learning centre of Sunni Islam³ also issued a “Statement to the Nation”¹ saying such comments crossed "a red line" and that Christian should accept accept Islamic dominance as Dhimmis, similar to Christians of Najran, Medina, during the rule of Muhammad.¹ The Coptic pope has issued an apology for the comments.³

 Despite the typical hypocritical Muslim anger over the comments, Christians were the original inhabitants of Egypt² prior to the invasion, conquest, and occupation by Muslim Arabs in the 7th century A.D., which continues to this day. While Al-Azhar denounces others, it has also been accused of challenging and ridiculing other religions since it's founding in 972 A.D., including by Grand Imam Sheikh Ahmed al-Tayeb, the current head of it's Islamic Research Council that issued the criticism of Bishop Bishoy, who challenged the validity of the Bible on TV.¹

Sources: 1. Continental News (ContinentalNews.net), 2. AFP, 3. BBC