Al-Baqarah - 2:169

إِنَّمَا يَأْمُرُكُمْ بِالسُّوءِ وَالْفَحْشَاء وَأَن تَقُولُواْ عَلَى اللّهِ مَا لاَ تَعْلَمُونَ
[2:169]
He only enjoins you evil and indecency, and that you may speak against Allah what you do not know.
For he commands you what is evil and shameful, and that ye should say of Allah that of which ye have no knowledge.
He enjoineth upon you only the evil and the foul, and that ye should tell concerning Allah that which ye know not.