It is narrated from Abdullah bin al-Sa'ib (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) led us in the Fajr prayer in Makkah and began Surah al-Mu'minun, until, when he reached the mention of Musa and Harun (peace be upon them both) or of Isa (peace be upon him) (Muhammad bin Abbad was in doubt about this, or else they differed concerning him), the Prophet (peace and blessings be upon him) was seized by a cough, and he went into ruku' (bowing). Ibn al-Sa'ib (may Allah be pleased with him) was present there.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 2458