(a) Qabisah al-Hilali (may Allah be pleased with him) narrates, with the meaning of the hadith of Musa bin Isma'il, that the sun was eclipsed until the stars appeared. The wording of all these hadiths indicates that they refer to the prayer the Prophet (peace and blessings be upon him) offered on the day his son Ibrahim (may Allah be pleased with him) died. A group of the companions of the hadith masters affirmed the number of his bowings in each rak'ah, so their narration is more worthy of acceptance than the narration of whoever did not affirm it.
(b) Imam al-Shafi'i (may Allah have mercy on him) mentioned the argument of those who argued from the hadith of Abu Bakrah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) offered the eclipse prayer as two rak'ahs "like your prayer", from the hadith of Samurah bin Jundub (may Allah be pleased with him), which has the same meaning, and from the hadith of Nu'man bin Bashir (may Allah be pleased with him). Then he gave preference to our hadiths, because the one who brings an addition is more worthy of having his word accepted, since he affirms what the one who shortened the hadith did not affirm, and because the chain of our hadith is among the most established chains.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة الخسوف / 6339