Musannaf Ibn Abi Shayba 1:407

Ibn Idris narrated to us, from Muhammad ibn ‘Ajlan, from Zayd ibn Aslam, from ‘Ata’ ibn Yasar, from Ibn ‘Abbas, that the Prophet (ﷺ) performed ablution. He scooped a handful of water, rinsed his mouth with it, and snuffed water into his nose.