Qur'an, Surah Al-Ahzab (33), verse 69Qur'an, Surah Al-Anfal (8), verse 41Qur'an, Surah Ali Imran (3), verse 161The History of al-Tabari, vol. IX, p. 31Hadith Sahih Bukhari, 5:620Hadith Sahih Muslim 5:2303, 2313