It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that when the Messenger of Allah (peace and blessings be upon him) would recite «﴿سَبِّحِاسْمَرَبِّكَالْأَعْلَى﴾», he would also say: «سُبْحَانَرَبِّيَالْأَعْلَى».
Hadith Referenceمسند احمد / ومن مسند بني هاشم / 2066