1355 Three categories of Hypocrites having already been mentioned (n. 1354), a fourth class of insidious evildoers is now mentioned, whose type is illustrated in the story of the "Mosque of mischief (dirar)". When the Holy Prophet arrived at Madinah for Hijrah, he rested four days in Quba' before entering the town of Madinah . Here was built the first mosque, the "Mosque of Piety" (Taqwa). or the mosque of the power of Islam (Quwat al lslam), to which he frequently came during his subsequent stay in Madinah. Taking advantage of these sacred associations, some Hypocrites of the Tribe of Bani Ghanam built an opposition mosque in Dhu 'Awan, pretending to advance Islam. In reality they were in league with a notorious enemy of Islam, one Abu 'Amir, who had fought against Islam at Uhud. When the Prophet learned of their duplicity on his return from the battle of Tabuk, he ordered two of his companions to destroy the mosque and burn it to the ground, (eds.) 1356 Abu'Amir, surnamed the Rahib (Monk), as he had been in touch with Christian monks. See last note.