Musannaf Ibn Abi Shayba 21:296

Al-Hasan ibn Musa narrated to us, from Hammad ibn Salamah, from Hajjaj al-Sawwaf, from Abu al-Zubayr, from Jabir, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Whoever says 'Subhan Allah al-Azim' (Glory be to Allah, the Magnificent), a palm tree or a tree is planted for him in Paradise."