Muhammad bin Ali says: Our Mahdi has two signs which have never occurred since the creation of the heavens and the earth: a lunar eclipse on the first night of Ramadan and a solar eclipse on the fifteenth. Since Allah created the heavens and the earth, these two eclipses have not occurred on these dates until now.
Hadith Referenceسنن الدارقطني / كتاب العيدين / 1795
Hadith Takhrij«أخرجه الدارقطني فى ((سننه)) برقم: 1795»