SABA' (KAUM SABA') — Ayat 46

قُلْ إِنَّمَا أَعِظُكُم بِوَاحِدَةٍ أَن تَقُومُوا لِلَّهِ مَثْنَى وَفُرَادَى ثُمَّ تَتَفَكَّرُوا مَا بِصَاحِبِكُم مِّن جِنَّةٍ إِنْ هُوَ إِلَّا نَذِيرٌ لَّكُم بَيْنَ يَدَيْ عَذَابٍ شَدِيدٍ

Say, "I only advise you of one [thing] - that you stand for Allah , [seeking truth] in pairs and individually, and then give thought." There is not in your companion any madness. He is only a warner to you before a severe punishment.