Zahdam Jarmi reported,

We were with Abu Musa when a chicken was mentioned. With him was a red-skinned man from Banu Taym Allah who appeared to be of the freedmen. Abu Musa invited him to eat, but he said, "I once saw a chicken eating something filthy and I found it disgusting, so I swore I would never eat it."Abu Musa said, "Come, let me tell you about that. I came to the Prophet ﷺ with a group of the Asharis, asking him to provide us with mounts. He said, 'By Allah, I will not give you mounts, and I have nothing to mount you on.'Then some captured camels were brought to the Messenger of Allah ﷺ, and he asked about us, saying, 'Where are the Ashari group?' He ordered that we be given five camels with white humps.When we set off, we said to ourselves, 'What have we done? There will be no blessing for us in this.' So we returned to him and said, 'We asked you to mount us, and you swore you would not mount us. Have you forgotten?'He said, 'It was not I who mounted you, rather Allah mounted you. By Allah, if Allah wills, I never swear an oath and then see something better than it without doing what is better and absolving myself of the oath.'"

Bukhari 3133

Sahih

حدثنا عبد الله بن عبد الوهاب حدثنا حماد حدثنا أيوب عن أبي قلابة قال وحدثني القاسم بن عاصم الكليبي وأنا لحديث القاسم أحفظ

عن زهدم قال

كنا عند أبي موسى فأتي ذكر دجاجة وعنده رجل من بني تيم الله أحمر كأنه من الموالي فدعاه للطعام فقال إني رأيته يأكل شيئا فقذرته فحلفت لا آكل فقال هلم فلأحدثكم عن ذاك إني أتيت النبي ﷺ في نفر من الأشعريين نستحمله فقال والله لا أحملكم وما عندي ما أحملكم وأتي رسول الله ﷺ بنهب إبل فسأل عنا فقال أين النفر الأشعريون فأمر لنا بخمس ذود غر الذرى فلما انطلقنا قلنا ما صنعنا لا يبارك لنا فرجعنا إليه فقلنا إنا سألناك أن تحملنا فحلفت أن لا تحملنا أفنسيت قال لست أنا حملتكم ولكن الله حملكم وإني والله إن شاء الله لا أحلف على يمين فأرى غيرها خيرا منها إلا أتيت الذي هو خير وتحللتها

البخاري 3133صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Obligation of the fifth
Chapter
Among the evidence that the fifth is for the needs of the Muslims is what Hawazin asked the Prophet ﷺ regarding his nursing among them, so he sought release from the Muslims
Numbering
Darussalam 3133
Bukhari 3133