Nafi' narrates from Ibn Umar (may Allah be pleased with them both): The sun was eclipsed in the time of the Prophet (peace and blessings be upon him), and the Prophet (peace and blessings be upon him) led the people in a prayer of two rak'ahs, performing two bowings in each rak'ah.
Only Yahya bin Sulaym narrated this from Ubaydullah.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة الخسوف / 6315