After the gathering at Saqifa where Abu Bakr was elected Caliph, Umar (who had been among Abu Bakr's advocates) and his supporters were allegedly sent to Fatimah's house where Fatimah, Ali and some of their allies were gathered. Several scholars, such as Al-Tabari and Ibn Qutaybah, narrate that Umar threatened to burn the building down if Ali refused to acknowledge Abu Bakr's authority, with Al-Tabari adding that Umar's men beat Ali's friend Zubayr ibn al-Awam. According to the "Al-Imama wa al-Siyasa" (mistakenly attributed to Ibn Qutaybah), when Umar was informed that Fatimah was inside the house, he responded that her presence made no difference to him.