Arabic (Original)
حَدَّثَنَا ابْنُ أَبِي عَدِيٍّ عَنْ حُمَيْدٍ عَنْ أَنَسٍ أَنَّ أَبَا مُوسَى اسْتَحْمَلَ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَوَافَقَ مِنْهُ شُغْلًا فَقَالَ وَاللَّهِ لَا أَحْمِلُكَ فَلَمَّا قَفَّى دَعَاهُ فَحَمَلَهُ فَقَالَ يَا رَسُولَ اللَّهِ إِنَّكَ حَلَفْتَ أَنْ تَحْمِلَنِي قَالَ فَأَنَا أَحْلِفُ لَأَحْمِلَنَّكَ.
English Translation
Ibn Abi Adiyy narrated to us from Humayd, from Anas: that Abu Musa asked the Prophet, peace and blessings be upon him, for a mount, and this happened to coincide with him being occupied, so he said, "By Allah, I will not give you a mount." Then, when he turned to leave, he called him back and gave him a mount. He said, "O Messenger of Allah, you swore that you would not give me a mount." He said, "Then I swear that I will indeed give you a mount."