Narrated Ibn `Abbas:
Some people were asking Allah's Messenger (ﷺ) questions mockingly. A man would say, "Who is my father?" Another man whose she-camel had gone astray would say, "Where is my she-camel? "So Allah revealed this Verse in this connection: "O you who believe! Ask not about things which, if made plain to you, may cause you trouble." (5.101)
USC-MSA web (English) reference: Vol. 6, Book 60, Hadith 146
Arabic reference: Book 65, Hadith 4622