I heard Sheik Al-Huwayni say, in one of his tapes, that Ibn Sinna (Avicenna) was an atheist or Kafir. Was he really?

Praise be to Allah, the Lord of the Worlds; and may His blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions.

Ibn Sinna (Avicenna) was accused of being a Kafir and an atheist because of his statements about the antiquity of the world, his rejection of the Hereafter, and other atheist theories, in addition to his inner legendary ideology.

Other scholars stated that Ibn Sinna was an atheist before Sheikh Al-Huwaini did; amongst them is: Al-Ghazali, Ibn Taymiyah, Ibn Al-Qayim, and Al-Dhahabi.

Allah knows best.