What is the authenticity of attributing the saying of the world's eternality and that God is limited to Ibn Taymiyyah, and what is the refutation of that, and what is the interpretation of the saying of Ali, may Allah be pleased with him: "Whoever claims that our God is limited has indeed been ignorant of the Creator worshipped," and the saying of Al-Tahawi: "And He is exalted above limits, ends, instruments, and tools," in the context of the Salaf's negation of limits?

As for the statement attributed to Sheikh Al-Islam Ibn Taymiyyah regarding the eternity of the world, it is incorrect. Perhaps the issue of "events without a beginning" (حوادث لا أول لها) confused you, which is a subtle matter that ordinary Muslims should not concern themselves with.

Regarding your statement that Sheikh Al-Islam Ibn Taymiyyah says that Allah is limited, the term "limit" (الحد) is among the ambiguous terms not found in the Qur'an and Sunnah. The correct approach is not to affirm or deny it generally, except by clarifying its intended meaning. The Salaf explain it in detail: if the meaning is sound, they affirm it using the wording of the texts, not with an ambiguous term. The Salaf have agreed that humans do not know a limit for Allah, and that Allah is distinct from His creation. This is what Al-Tahawi intended by his saying that no one can encompass His limit. A limit in this sense – meaning that by which a thing separates and distinguishes itself from others – is not contested. However, a limit in the sense of being encompassed by creation is unanimously negated.

As for the narration transmitted from Ali (may Allah be pleased with him) concerning the limit, its chain of transmission is not sound due to two defects: the weakness of Al-Nu'man ibn Sa'd and the break in the chain between Muhammad ibn Ishaq and Al-Nu'man ibn Sa'd.

The statement that Allah is in the heaven is what the texts of revelation indicate.

Sheikh Al-Islam Ibn Taymiyyah is an Imam among the Imams of Ahl Al-Sunnah, renowned for his knowledge and uprightness. He was praised by both his supporters and opponents. However, he is a human who errs and is correct; his statements are taken or rejected like those of other scholars.