It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) had a she-camel named ‘Adhba’, which no one could surpass in a race. Then a Bedouin came on his camel and surpassed her. This was very hard on the Muslims. When the Messenger of Allah (peace and blessings of Allah be upon him) saw their reaction, they said: “O Messenger of Allah, ‘Adhba’ has been surpassed!” So the Messenger of Allah (peace and blessings of Allah be upon him) said: “It is Allah’s right that He brings down every rise in this world.”
Hadith Referenceالسنن المأثورة / باب الجهاد / 645
Hadith Takhrijصحیح بخاری، الجہاد، باب ناقۃ النبی صلی اللہ علیہ وسلم ، رقم: 2872۔