Is Abu Talib a Muslim?

There is no textual evidence that Abu Talib converted the second group in our times is some extreme Sufi groups. The death of Khadija Radi al-Lahutala anha and Ibn al-Josy says this death occurred within 40 days of the death of Abu Talib. When Khadija passed away the Salah had not yet been revealed so there was no Jannazah performed over her because there was no Salah at the time. He himself entered into the grave and he himself put her body there and took charge of the burial. After death of Khdija we did not see the Prophet saw some smile.