It is narrated from Sayyiduna Anas (may Allah be pleased with him) that Sayyiduna Abu Musa (may Allah be pleased with him) asked the Prophet (peace and blessings be upon him) for a mount, while at that time he (peace and blessings be upon him) was busy with some matter, so he (peace and blessings be upon him) swore that he would not give him a mount. Then he (peace and blessings be upon him) said: "And I (now) swear that I will certainly provide you with a mount." So he (peace and blessings be upon him) gave him a mount.
Hadith Referenceمسند أبي يعلى الموصلي / مسند أنس بن مالك / 3835
Hadith Gradingمحدثین:إسناده صحيح على شرط الشيخين
Hadith Takhrij«حکم الحدیث مسند ابی یعلی محققاً تنسیق حسين سليم أسد - مکتبہ شاملہ :قال حسين سليم أسد: إسناده صحيح على شرط الشيخين . » «قال سعيد بن محمد السناري: صحيح» «أخرجه مسند أحمد برقم: 12424، مسند ابویعلیٰ ترقیم الاثری: 3823»