(10:66) Unquestionably, to Allah belongs whoever is in the heavens and whoever is on the earth. And those who invoke other than Allah do not [actually] follow [His] “partners.” They follow not except assumption, and they are not but falsifying
Muhammad Taqi-ud-Din al-Hilali and Muhammad Muhsin Khan,
(10:66) No doubt! Verily, to Allah belongs whosoever is in the heavens and whosoever is in the earth. And those who worship and invoke others besides Allah, in fact they follow not the (Allah’s so-called) partners, they follow only a conjecture and they only invent lies.
Mohammed Marmaduke William Pickthall
(10:66) Lo! is it not unto Allah that belongeth whosoever is in the heavens and whosoever is in the earth? Those who follow aught instead of Allah follow not (His) partners. They follow only a conjecture, and they do but guess.
Abdullah Yusuf Ali
(10:66) Behold! verily to Allah belong all creatures, in the heavens and on earth. What do they follow who worship as His “partners” other than Allah? They follow nothing but fancy, and they do nothing but lie.
Mohammad Habib Shakir
(10:66) Now, surely, whatever is in the heavens and whatever is in the earth is Allah’s; and they do not (really) follow any associates, who call on others besides Allah; they do not follow (anything) but conjectures, and they only lie.
(10:66) Verily, to Allah surely belongs whoever is in the heavens surely and whoever is in the earth; and in no way do the ones who invoke (anything) apart from Allah follow any associates; decidedly they do not follow anything except surmise, and decidedly they do nothing except conjecture.
(10:66) Know well that to God belongs whoever is in the heavens and whoever is on the earth (His creatures and servants). Those who invoke, apart from God, (do not do so because they really have found deities and lords that can be partners with God in His Divinity and Lordship, and so) follow those partners. They do but follow only conjecture (not authoritative knowledge), and they do nothing except making up suppositions.
Amatul Rahman Omar
(10:66) Behold! surely to Allâh belongs whoever is in the heavens and whoever is on the earth. Those who call on gods other than Allâh (as a matter of fact) do not follow their (associated) partners (with Allâh), they follow nothing but (their own) surmises and they do nothing but conjecture.
(10:66) Is it not that to God who (is) in the skies/space and the earth/Planet Earth? And those who call from other than God partners, (they) do not follow (anything) except the assumption/supposition, and that they (are) except lying/speculating.
(10:66) Remember, whosoever is in the heavens and the earth belongs to God. Those who call on others they associate with God, follow nothing but conjecture, and only guess.
A. J. Arberry
(10:66) Why, surely to God belongs everyone that is in the heavens and in the earth; they follow, who call upon associates, apart from God — they follow nothing but surmise, merely conjecturing.
Abdul Majid Daryabadi
(10:66) Lo! verily Allah’s is whosoever is in the heavens and whosoever is on the earth. And what is it that they who call unto associate-gods beside Allah follow They follow but an opinion, and they are but conjecturing.
Maulana Mohammad Ali
(10:66) Does not all that is in the heavens and the earth belong to God? (The unbelievers) who worship the idols instead of God follow only conjecture. What they preach are mere lies.
Hamid Abdul Aziz
(10:66) Let not their speech grieve you; verily, power belongs wholly to Allah. He is the Hearer and Knower.
(10:66) Indeed all those in the heavens and all those in the earth are in Allahs control
(10:66) Certainly, to God belongs everyone in the heavens and everyone on earth. Those who invoke other than God do not follow partners; they follow only assumptions, and they only guess.
Ahmed Raza Khan
(10:66) Indeed all those in the heavens and all those in the earth are in Allahs control; and what do those who pray to the partners instead of Allah, follow? They do not follow anything except assumption, and they only make guesses.
(10:66) Surely, all who are in the heavens and on the earth belong to Him. What do those follow, who appeal to associates instead of to God? They merely follow conjecture and they are only guessing.
(10:66) Behold! Verily, to Allah belongs whosoever is in the heavens and whosoever is in the earth. And those who worship and invoke others besides Allah, in fact they follow not the partners, they follow only a conjecture and they do nothing but lie.
Ali Quli Qarai
(10:66) Look! To Allah indeed belongs whoever is in the heavens and whoever is on the earth. What do they pursue who invoke partners besides Allah? They merely follow conjectures and they just make surmises.
Hasan al-Fatih Qaribullah and Ahmad Darwish
(10:66) Attention: Indeed to Allah belongs everyone that is in the heavens and in the earth. Those who call upon associates, other than Allah, follow nothing but assumptions, (they are) only lying.
That is translated surah Yunus ayat 66 (QS 10: 66) in arabic and english text, may be useful.