Imam al-Shafi'i (may Allah have mercy on him) said: "This is foolishness for which his testimony is rejected, and in the case of a slave-girl it is even worse, because in it there is both foolishness and pandering (diyathah)."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / Q21020
Mujahid (may Allah have mercy on him) says concerning this saying of Allah Almighty: "And among the people is he who buys idle talk" [Surah Luqman: 6]: What is meant is one who buys male and female singers for a great deal of wealth, then listens to falsehood from them.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 21020
Ibn Mas'ud (may Allah be pleased with him) says that the Messenger of Allah (peace and blessings be upon him) said: "No one has more ghayrah (protective jealousy) than Allah; that is why He has forbidden indecencies. And praise is more beloved to Allah than to anyone."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 21021
Sayyiduna Abu Hurayrah (may Allah be pleased with him) says that the Messenger of Allah (peace and blessings be upon him) said: "Allah has ghayrah (protective jealousy), and the believer also has ghayrah, and Allah's ghayrah is (stirred) when the believer commits what Allah has forbidden."
(b) In the narration of Hammam: "And Allah's ghayrah is (stirred) when the believer approaches what Allah has forbidden."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 21022
Zayd bin Aslam (may Allah have mercy on him) says that the Prophet (peace and blessings be upon him) said: "Ghayrah (protective jealousy) is part of faith, and pandering (diyathah) is part of hypocrisy." [Da'if]
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 21023
Zayd bin Aslam (may Allah have mercy on him) narrates it in the same way, but without the words: "al-madha' means the dayyuth, the one without ghayrah." Abu Ubayd (may Allah have mercy on him) explains that al-madha' is taken from al-madhy; what is meant is gathering men and women together and then letting them mix, so that they behave shamelessly with one another.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 21024
Salim bin Abdullah bin Umar narrates from his father (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Three will not enter Paradise: 1. one who is disobedient to his parents, 2. the dayyuth (one without protective jealousy), 3. the woman who imitates men."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 21025
Hisham bin Lahiq narrates from Asim (may Allah have mercy on him) that a man came to al-Hasan (may Allah have mercy on him) and said: O Abu Sa'id, my slave-girl has a beautiful voice; if I teach her singing, I will then earn money through her. Al-Hasan (may Allah have mercy on him) said: "And he used to command his family to pray and give zakah, and he was pleasing to his Lord" [Surah Maryam: 55]: Isma'il used to command his family to pray and give zakah, and he was well-pleasing. Then he kept repeating his words.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 21026