What is the logic & Proof in Shariah for Counting Zikr & Wazaif ?

Hazrat Ji Mufti Muneer Ahmed Akhoon (DB) explained the logic and proof from Quran and Sunnah for keeping a count of zikr and wazaif. This is becoming a common misconception that we should not determine a specific count for the zikr we do or the wazaif we read.