«لِعَرَاقَةِ الْمُفْرَدِ فِي الْإِعْرَابِ»
Because the single word has a firmly established primary status in inflection.
The familiar nominal form of ḥāl is a single accusative expression such as جَاءَ زَيْدٌ رَاكِبًا. An affirmative imperfect can likewise qualify an action, as in جَاءَ زَيْدٌ يَرْكَبُ. Since a single-word circumstantial modifier does not take a separate linking wāw, its similarity to the affirmative imperfect provides one rationale for the absence of wāw.
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Circumstantial Imperfect and Past Verbs: Rules for Wāw al-Ḥāl
«لِعَرَاقَةِ الْمُفْرَدِ فِي الْإِعْرَابِ»
Because the single word has a firmly established primary status in inflection.
The familiar nominal form of ḥāl is a single accusative expression such as جَاءَ زَيْدٌ رَاكِبًا. An affirmative imperfect can likewise qualify an action, as in جَاءَ زَيْدٌ يَرْكَبُ. Since a single-word circumstantial modifier does not take a separate linking wāw, its similarity to the affirmative imperfect provides one rationale for the absence of wāw.