Sunan Abi Dawud, Hadith 990 ⓘ
Narrated Abdullah ibn Mas'ud: The Prophet was in the first two rak'ahs as though he were on heated stones. The narrator Shu'bah said: We said: Till he (the Prophet) got up.
حَدَّثَنَا حَفْصُ بْنُ عُمَرَ، حَدَّثَنَا شُعْبَةُ، عَنْ سَعْدِ بْنِ إِبْرَاهِيمَ، عَنْ أَبِي عُبَيْدَةَ، عَنْ أَبِيهِ، أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ فِي الرَّكْعَتَيْنِ الأُولَيَيْنِ كَأَنَّهُ عَلَى الرَّضْفِ . قَالَ قُلْتُ حَتَّى يَقُومَ قَالَ حَتَّى يَقُومَ .
also referenced under: Hadith 995 (DarusSalam) & Book 3, Hadith 990 (USC-MSA)