Adh-Dhahabee (rahimahullaah) commented; "Trustworthiness is a portion of the deen (piety), and precision is included in proficiency; so what a haafidh really needs, is to be: fearful (of Allaah), intelligent, grammatical, a linguist, righteous, modest, Salafee, and it is sufficient enough for him to write two hundred volumes and to gather five hundred reliable compilations (books), and not to become fatigued by seeking knowledge till death, with sincerity and humility, otherwise let him not trouble himself."

From Shaykh Abu Zayd Bakr, page 40

Allah knows best if this is what the brother was talking about.