"Abu Bakr and Umar, may Allah be pleased with them both, and the one who was better than them prostrated during 'When the heaven is split asunder' and 'Read! In the name of your Lord.'" (Using translation from Nasāʾī 966)
سَجَدَ أَبُو بَكْرٍ وَعُمَرُ وَمَنْ هُوَ خَيْرٌ مِنْهُمَا ﷺ فِي إِذَا السَّمَاءُ انْشَقَّتْ وَاقْرَأْ بِاسْمِ رَبِّكِ