דִּקְדֵּק אַחֲרָיו, דִּקְדֵּק עִמּוֹ כְּחוּט הַשַּׂעֲרָה

ביטוי (אנגלית)

To scrutinize a person (in order to find faults)/ to be very strict with

הגדרה (אנגלית)

To be strict and meticulous regarding a person's behavior. To insist on not overlooking any small detail. To examine and test him, to be exacting about his deeds and demands from him.

("You scrutinized after me and did not find anything in your hands" - Keritut 19b, and likewise: "Great righteous men who scrutinize themselves like the hair’s thread, and the more their greatness increases upon them, they humble themselves. Blessed is the generation in which Rabbi Zusha dwells" - Mordechai ben Yechezkel, Sefer Hamaasiyot part four, The one who scrutinizes himself like the hair’s thread, 212.)