Mishkat al-Masabih 2780
Abu Umama reported God’s Messenger as saying:
"Do not sell, buy or teach singing-girls, and the price paid for them is unlawful. To similar effect has been sent down, 'Among men are those who purchase frivolous talk' (Al-Qur'an 31:6).

Ahmad, Tirmidhi and Ibn Majah transmitted it, Tirmidhi saying that this is a gharib tradition and that ‘Ali b. Yazid the transmitter is declared to be a weak traditionist.
وَعَنْ أَبِي أُمَامَةَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: " لَا تَبِيعُوا الْقَيْنَاتِ وَلَا تَشْتَرُوهُنَّ وَلَا تُعَلِّمُوهُنَّ وَثَمَنُهُنَّ حَرَامٌ وَفِي مِثْلِ هَذَا نَزَلَتْ: (وَمِنَ النَّاسِ مَنْ يَشْتَرِي لهْوَ الحَديثِ)
رَوَاهُ أَحْمَدُ وَالتِّرْمِذِيُّ وَابْنُ مَاجَهْ وَقَالَ التِّرْمِذِيُّ هَذَا حَدِيثٌ غَرِيبٌ وَعلي بن يزِيد الرواي يُضَعَّفُ فِي الْحَدِيثِ