Maliks Muwatta Book 20, Hadith Number 181.

Yahya related to me from Malik from Yahya ibn Said from Ata ibn Abi Rabah that a mawla of Asma bint Abi Bakr told him, “We arrived at Mina with Asma bint Abi Bakr at the end of the night, and I said to her, ‘We have arrived at Mina at the end of the night,’ and she said, ‘We used to do that with one who was better than you.'”