It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) disliked taking a bath with water heated by the sun, and he used to say: It causes the disease of baras (leprosy).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 12
Hadith Gradingمحدثین:ضعيف جدًا
Hadith Takhrij«ضعيف جدًا۔ أخرجه الشافعي في الأم والمسند كما في التلخيص 1/22»
Hassan bin Azhar (may Allah have mercy on him) said that the Commander of the Believers, Umar bin al-Khattab (may Allah be pleased with him), said: "Do not take a bath with water heated by the sun, for it causes the disease of baras (leprosy)."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 13
Hadith Gradingمحدثین:ضعيف
Hadith Takhrij«ضعيف۔ أخرجه الدارقطني في سننه 1/39»
Sayyidah Aishah al-Siddiqah (may Allah be pleased with her) said: I heated water in the sun, and the Prophet (peace and blessings be upon him) said: "O Humayra! Do not do that, for it causes the disease of baras."
Shaykh Ahmad (may Allah have mercy on him) said: This narration has also been transmitted through another chain, which is munkar (rejected).
This is not authentic. Khalid bin Isma'il is matruk (abandoned); Ibn Adi said: Khalid bin Isma'il Abu al-Walid al-Makhzumi fabricates hadith and attributes them to trustworthy Muslims.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 14
Hadith Gradingمحدثین:موضوع
Hadith Takhrij«موضوع۔ أخرجه الثقفي في الثفضيات 3/21/1»