ما المسؤول بأعلم من السائل

Arabic

Etymology

From the Hadith of Gabriel.

Phrase

مَا الْمَسْؤُولُ بِأَعْلَمَ مِنَ السَّائِلِ • (mā l-masʔūlu biʔaʕlama mina s-sāʔili)

1. I don't know, your guess is as good as mine (literally, "the asked knows no better than the asker")