It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that once I and Fadl were passing by riding on a donkey, at that time the Prophet (peace and blessings of Allah be upon him) was leading the people in prayer in the desert. We dismounted from our ride and joined the prayer with the Prophet (peace and blessings of Allah be upon him), and the Prophet (peace and blessings of Allah be upon him) did not say anything to us.
Hadith Referenceمسند احمد / ومن مسند بني هاشم / 3017
Hadith Gradingحکم دارالسلام:حديث صحيح، شعبة مولى ابن عباس، وإن كان سيئ الحفظ، قد توبع