Admitting the Hindu and Alexandrian authors [such as Diophantus], to be nearly equally ancient, it must be conceded in favor of the Indian algebraist, that he was more advanced in the science […] In the whole science [of algebra], he [Diophantus] is very far behind the Hindu writers […] he is hardly to be considered as the inventor, since he seems to treat the art as already known.
Source, in full
Colebrooke, Henry Thomas. Algebra, with Arithmetic and Mensuration, from the Sanskrit of Brahmegupta and Bhascara. London: John Murray, Albemarle Street, 1817. in the preface to his translation of the works of Brahmagupta and Bhaskara, quoted in : Bhaskar Kamble, The Imperishable Seed: How Hindu Mathematics Changed the World and why this History was Erased, Garuda Prakashan Private Limited, 2022 ISBN 9798885750189