Musnad Ahmad 553:4

Muhammad ibn Ja‘far narrated to us, he said: Sa‘id ibn Abi ‘Arubah narrated to us, from Qatadah ibn Di‘amah, from Anas ibn Malik, from Malik ibn Sa‘sa‘ah, from the Prophet (peace and blessings of Allah be upon him) that he said: "While I was at the Ka‘bah, between sleeping and waking, I heard a speaker say: 'One of the three.' Then he mentioned the hadith. He said: 'Then the Much-Frequented House (al-Bayt al-Ma‘mur) was raised for us; seventy thousand angels enter it every day. When they exit from it, they do not return to it, as it is the last of their duty.' He said: 'Then I was raised to the Lote Tree of the Utmost Boundary (Sidrat al-Muntaha), and its leaves were like the ears of elephants.' Then he mentioned the hadith. He said: 'I said: I have gone back and forth to my Lord until I have become shy. No, rather I am content and I submit.' He said: 'When I passed beyond it, it was called out to me: I have lightened [the burden] upon My servants, I have executed My obligatory duties, and I have made for every good deed ten times its like.'"