The Cow - 2:67
"Remember when Moses said to his people: "Allah commands you to slaughter a heifer". When they said, "Are you mocking us?"he said, "I seek refuge in Allah from acting ignorantly."
2: The lesson to be learned from 67, , 73:
The Table Spread/5:101
Believers, do not ask questions about what you do not like when it is explained to you. If you ask in the light of the Qur´an, they will become clear to you. Allah has not specifically mentioned them. Allah is Forgiving, Mild.