Rasheed Hasan Khan (1925–2006) occupies a central position in Urdu scholarship for his rigorous approach to research (tahqeeq) and textual editing (tadween). This article examines his scholarly temperament and methodological contribution with particular reference to his influential work Zaban aur Qawaid, a collection of essays addressing core issues of Urdu usage, orthography, pronunciation, lexicography, and grammatical convention. The study highlights how Khan transforms complex linguistic questions into accessible arguments through careful citation, comparative consultation of dictionaries, and close reading of classical poetic and prose sources. Special attention is given to his critical engagement with prescriptive claims about “correct” forms, especially in cases where Arabic–Persian norms intersect with Urdu’s historical and evolutionary language practices. By analyzing selected discussions—such as the standardization of pronunciation and spelling, the evaluation of contested lexical forms, and the treatment of shared-gender (mushtarak) words—this article demonstrates that Khan’s approach is neither merely conservative nor casually permissive; rather, it is a principled, evidence-based model that privileges actual Urdu literary usage while remaining alert to etymology and linguistic structure. The paper concludes that Zaban aur Qawaid represents an enduring scholarly framework for balancing norm, usage, and linguistic change, and it continues to inform contemporary debates on Urdu standardization, dictionary-making, and editorial practice.