Sahih al-Bukhari 6678
Sahih al-Bukhari · Book 83: Oaths and Vows · To swear something not in one's power; to swear to do an act disobedience; to take an oath in anger.
Narrated Abu Musa:
حَدَّثَنِي مُحَمَّدُ بْنُ الْعَلاَءِ ، حَدَّثَنَا أَبُو أُسَامَةَ ، عَنْ بُرَيْدٍ ، عَنْ أَبِي بُرْدَةَ ، عَنْ أَبِي مُوسَى ، قَالَ أَرْسَلَنِي أَصْحَابِي إِلَى النَّبِيِّ صلى الله عليه وسلم أَسْأَلُهُ الْحُمْلاَنَ فَقَالَ " وَاللَّهِ لاَ أَحْمِلُكُمْ عَلَى شَىْءٍ ". وَوَافَقْتُهُ وَهْوَ غَضْبَانُ فَلَمَّا أَتَيْتُهُ قَالَ " انْطَلِقْ إِلَى أَصْحَابِكَ فَقُلْ إِنَّ اللَّهَ ـ أَوْ إِنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم ـ يَحْمِلُكُمْ " .
My companions sent me to the Prophet (ﷺ) to ask him for some mounts. He said, "By Allah! I will not mount you on anything!" When I met him, he was in an angry mood, but when I met him (again), he said, "Tell your companions that Allah or Allah's Messenger (ﷺ) will provide you with mounts."