Composite patterns may combine agreement and difference in different parts of a name. Sometimes the number of letters stays the same while dots or pronunciation vary; sometimes a letter is added or lost. Comparing the full graphic form and vocalizing each segment separately is essential.
Example: In pairs such as “Muḥammad ibn Sinān” and “Muḥammad ibn Sayyār,” the given name is shared but the patronymic differs. A quick reading of a handwritten text can misidentify the narrator because of final letters or dots.
These differences are not merely calligraphic. Each proposed reading points to a person whose transmission history and independent evidence must be assessed.