Is Abu Talib the one among those who affirm God's Oneness (monotheists) who will receive the lightest punishment in Hellfire, as was narrated from the Prophet, peace and blessings be upon him?

The person among the inhabitants of Hell who will receive the lightest punishment is Abu Talib, for he will wear two sandals of fire, which will cause his brain to boil. This does not mean his punishment is lighter than that of the monotheists; rather, he is the one among the disbelievers who will receive the lightest punishment. This hadith indicates that the disbelievers will vary in the severity of their torment.