«عدم اشتهار الخبر فيما يعم به البلوى في الصدر الأول والثاني»
A report not becoming widespread concerning a matter of broad practical need in the earliest generations.
Umum al-balwa refers to a practice or situation frequently encountered by large numbers of people. If a detailed ruling was required repeatedly, jurists may ask why its circulation or public practice was not more evident early on.
Examples mentioned include audible basmalah in prayer, raising the hands at certain points of prayer, and reports concerning ablution after touching the private parts. This is a particular interpretive indicator within a Hanafi line of reasoning, not an automatic final verdict on all such reports.