Majma al-Zawaid — Hadith 3262

It is reported about Sayyiduna Ali (may Allah be pleased with him): The narrator says: The sun was eclipsed, so Sayyiduna Ali (may Allah be pleased with him) led the people in prayer and recited Surah Ya-Sin and a surah like it. Then he went into ruku' and remained in ruku' as long as he had recited. Then he raised his head and said: 'Sami' Allahu liman hamidah' (Allah hears the one who praises Him). Then he remained standing, supplicating and saying takbir, for as long as he had recited that surah. Then he went into ruku', and that ruku' too was as long as his recitation. Then he said: 'Sami' Allahu liman hamidah'. Then he stood for as long as it takes to recite that surah, then he went into ruku' for that long as well, until he had bowed four times. Then he said: 'Sami' Allahu liman hamidah' and went into prostration. Then he stood up for the second rak'ah and offered it in the same way as he had offered the first rak'ah. Then he sat, supplicating and expressing earnest longing, until the sun became bright again. Then he told the people that the Prophet (peace and blessings be upon him) had done the same.
Ahmad recorded it, and its narrators are thiqat (trustworthy).