If you are referencing "172" in relation to the loins of Adam (often discussed in commentaries of Surah Al-A'raf 7:172 ), the "feature" is the testimony of every human soul Key Feature
If "Kitabul Akib" refers to a specific modern book or a local scholarly work, please provide the author's name specific topic it covers so I can find the exact entry for you. physical descriptions of the Prophet mentioned in these narrations or the theological meaning of the title "Al-Aqib"? kitabul akib hadith 172
"يكون في آخر الزمان خلفاء يقتلون ويظلمون، فإذا رأيتم ذلك فعليكم بالعاقب الذي يأتي من قبل المشرق..." If you are referencing "172" in relation to