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