Imaam Maalik (rahimahullah) gave the following reply, “O servant of Allah! Sometimes a Syrian comes to me from his land of Syria, or an Iraqi comes to me from his land of Iraq, or an Egyptian comes to me from his land of Egypt, asking me various masaa’il. If I am not certain of something then I should not inform the people, as in the case where I give them an answer, but thereafter realize that the answer which I gave them was incorrect, then how will I find them and inform them that I had given them the incorrect answer?”
(Tazyeen-ul-Mamaalik pg. 34)