Musannaf Ibn Abi Shaybah 3739 — A man combining surahs in one rakah

Sayyiduna Abd al-Rahman bin Uthman (may Allah be pleased with him) said: I stood behind the Station of Ibrahim to pray, wanting that no one other than me should stand in that place that night. Then a man drew my attention from behind me. I did not turn, and he drew my attention again. I turned and saw that it was Sayyiduna Uthman bin Affan (may Allah be pleased with him). I moved back, and he stood there and completed the prayer after reciting the whole Qur'an in a single rak'ah.