The beginning of the revelation to the messenger of Allah (saws) Sahih Muslim 161 e
Arabic hadith text
حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا عُثْمَانُ بْنُ عُمَرَ، أَخْبَرَنَا عَلِيُّ بْنُ الْمُبَارَكِ، عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ، بِهَذَا الإِسْنَادِ وَقَالَ " فَإِذَا هُوَ جَالِسٌ عَلَى عَرْشٍ بَيْنَ السَّمَاءِ وَالأَرْضِ
Translation
Yahya b Abi Kathir has reported this hadith with the same chain of transmitters and narrated
And there he was sitting on the Throne between the heaven and the earth.