From Sahih Bukhari (Hadith 5211):
Narrated al-Qasim:Aisha said that whenever the Prophet (ﷺ) intended to go on a journey, he drew lots among his wives (so as to take one of them along with him). During one of his journeys the lot fell on `Aisha and Hafsa. When night fell the Prophet (ﷺ) would ride beside `Aisha and talk with her. One night Hafsa said to `Aisha, "Won't you ride my camel tonight and I ride yours, so that you may see (me) and I see (you) (in new situation)?" `Aisha said, "Yes, (I agree.)" So `Aisha rode, and then the Prophet (ﷺ) came towards `Aisha's camel on which Hafsa was riding. He greeted Hafsa and then proceeded (beside her) till they dismounted (on the way). `Aisha missed him, and so, when they dismounted, she put her legs in the Idhkhir and said, "O Lord (Allah)! Send a scorpion or a snake to bite me for I am not to blame him (the Prophet (ﷺ)
Reference: Bukhari 5211